Selecting a neighbor node in a wireless multi-hop network using a cost parameter

ABSTRACT

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a child node in a wireless multi-hop network may receive a cost parameter from a neighbor node in the wireless multi-hop network, wherein the cost parameter indicates a cost, due to an operating mode of the neighbor node, of selecting the neighbor node as a target node for a handover procedure, a cell selection procedure, or a cell reselection procedure. The child node may perform the handover procedure, the cell selection procedure, or the cell reselection procedure based at least in part on the cost parameter. Numerous other aspects are provided.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a divisional of U.S. patent application Ser. No.16/986,903, filed on Aug. 6, 2020, entitled “SELECTING A NEIGHBOR NODEIN A WIRELESS MULTI-HOP NETWORK USING A COST PARAMETER,” which claimspriority to U.S. Provisional Patent Application No. 62/886,155, filed onAug. 13, 2019, entitled “SELECTING A NEIGHBOR NODE IN A WIRELESSMULTI-HOP NETWORK USING A COST PARAMETER,” the contents of which areincorporated herein by reference in their entireties.

FIELD OF THE DISCLOSURE

Aspects of the present disclosure generally relate to wirelesscommunication and to techniques and apparatuses for selecting a neighbornode in a wireless multi-hop network using a cost parameter.

BACKGROUND

Wireless communication systems are widely deployed to provide varioustelecommunication services such as telephony, video, data, messaging,and broadcasts. Typical wireless communication systems may employmultiple-access technologies capable of supporting communication withmultiple users by sharing available system resources (e.g., bandwidth,transmit power, and/or the like). Examples of such multiple-accesstechnologies include code division multiple access (CDMA) systems, timedivision multiple access (TDMA) systems, frequency-division multipleaccess (FDMA) systems, orthogonal frequency-division multiple access(OFDMA) systems, single-carrier frequency-division multiple access(SC-FDMA) systems, time division synchronous code division multipleaccess (TD-SCDMA) systems, and Long Term Evolution (LTE).LTE/LTE-Advanced is a set of enhancements to the Universal MobileTelecommunications System (UMTS) mobile standard promulgated by theThird Generation Partnership Project (3GPP).

A wireless communication network may include a number of base stations(BSs) that can support communication for a number of user equipment(UEs). A user equipment (UE) may communicate with a base station (BS)via the downlink and uplink. The downlink (or forward link) refers tothe communication link from the BS to the UE, and the uplink (or reverselink) refers to the communication link from the UE to the BS. As will bedescribed in more detail herein, a BS may be referred to as a Node B, agNB, an access point (AP), a radio head, a transmit receive point (TRP),a New Radio (NR) BS, a 5G Node B, and/or the like.

The above multiple access technologies have been adopted in varioustelecommunication standards to provide a common protocol that enablesdifferent user equipment to communicate on a municipal, national,regional, and even global level. New Radio (NR), which may also bereferred to as 5G, is a set of enhancements to the LTE mobile standardpromulgated by the Third Generation Partnership Project (3GPP). NR isdesigned to better support mobile broadband Internet access by improvingspectral efficiency, lowering costs, improving services, making use ofnew spectrum, and better integrating with other open standards usingorthogonal frequency division multiplexing (OFDM) with a cyclic prefix(CP) (CP-OFDM) on the downlink (DL), using CP-OFDM and/or SC-FDM (e.g.,also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) onthe uplink (UL), as well as supporting beamforming, multiple-inputmultiple-output (MIMO) antenna technology, and carrier aggregation.However, as the demand for mobile broadband access continues toincrease, there exists a need for further improvements in LTE and NRtechnologies.

SUMMARY

In some aspects, a method of wireless communication, performed by achild node in a wireless multi-hop network, may include receiving a costparameter from a neighbor node in the wireless multi-hop network,wherein the cost parameter indicates a cost, due to an operating mode ofthe neighbor node, of selecting the neighbor node as a target node for ahandover procedure, a cell selection procedure, or a cell reselectionprocedure; and performing the handover procedure, the cell selectionprocedure, or the cell reselection procedure based at least in part onthe cost parameter.

In some aspects, a method of wireless communication, performed by aserving node in a wireless multi-hop network, may include receiving acost parameter associated with a neighbor node in the wireless multi-hopnetwork, wherein the cost parameter indicates a cost, due to anoperating mode of the neighbor node, of selecting the neighbor node as atarget node for a handover procedure; and performing the handoverprocedure based at least in part on the cost parameter.

In some aspects, a method of wireless communication, performed by aneighbor node in a wireless multi-hop network, may include determining acost parameter that indicates a cost, due to an operating mode of theneighbor node, of selecting the neighbor node as a target node for ahandover procedure, a cell selection procedure, or a cell reselectionprocedure; and transmitting the cost parameter.

In some aspects, a method of wireless communication, performed by acontrol node in a wireless multi-hop network, may include receiving aset of cost parameters corresponding to a set of neighbor nodes in thewireless multi-hop network, wherein each cost parameter indicates acost, due to an operating mode of a respective neighbor node, ofselecting the respective neighbor node as a target node for a handoverprocedure; selecting a neighbor node, of the set of neighbor nodes, asthe target node for the handover procedure based at least in part on theset of cost parameters; and instructing the selected neighbor node toperform the handover procedure.

In some aspects, a child node in a wireless multi-hop network forwireless communication may include memory and one or more processorsoperatively coupled to the memory. The memory and the one or moreprocessors may be configured to receive a cost parameter from a neighbornode in the wireless multi-hop network, wherein the cost parameterindicates a cost, due to an operating mode of the neighbor node, ofselecting the neighbor node as a target node for a handover procedure, acell selection procedure, or a cell reselection procedure; and performthe handover procedure, the cell selection procedure, or the cellreselection procedure based at least in part on the cost parameter.

In some aspects, a serving node in a wireless multi-hop network forwireless communication may include memory and one or more processorsoperatively coupled to the memory. The memory and the one or moreprocessors may be configured to receive a cost parameter associated witha neighbor node in the wireless multi-hop network, wherein the costparameter indicates a cost, due to an operating mode of the neighbornode, of selecting the neighbor node as a target node for a handoverprocedure; and perform the handover procedure based at least in part onthe cost parameter.

In some aspects, a neighbor node in a wireless multi-hop network forwireless communication may include memory and one or more processorsoperatively coupled to the memory. The memory and the one or moreprocessors may be configured to determine a cost parameter thatindicates a cost, due to an operating mode of the neighbor node, ofselecting the neighbor node as a target node for a handover procedure, acell selection procedure, or a cell reselection procedure; and transmitthe cost parameter.

In some aspects, a control node in a wireless multi-hop network forwireless communication may include memory and one or more processorsoperatively coupled to the memory. The memory and the one or moreprocessors may be configured to receive a set of cost parameterscorresponding to a set of neighbor nodes in the wireless multi-hopnetwork, wherein each cost parameter indicates a cost, due to anoperating mode of a respective neighbor node, of selecting therespective neighbor node as a target node for a handover procedure;select a neighbor node, of the set of neighbor nodes, as the target nodefor the handover procedure based at least in part on the set of costparameters; and instruct the selected neighbor node to perform thehandover procedure.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a child node ina wireless multi-hop network, may cause the one or more processors to:receive a cost parameter from a neighbor node in the wireless multi-hopnetwork, wherein the cost parameter indicates a cost, due to anoperating mode of the neighbor node, of selecting the neighbor node as atarget node for a handover procedure, a cell selection procedure, or acell reselection procedure; and perform the handover procedure, the cellselection procedure, or the cell reselection procedure based at least inpart on the cost parameter.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a serving nodein a wireless multi-hop network, may cause the one or more processorsto: receive a cost parameter associated with a neighbor node in thewireless multi-hop network, wherein the cost parameter indicates a cost,due to an operating mode of the neighbor node, of selecting the neighbornode as a target node for a handover procedure; and perform the handoverprocedure based at least in part on the cost parameter.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a neighbor nodein a wireless multi-hop network, may cause the one or more processorsto: determine a cost parameter that indicates a cost, due to anoperating mode of the neighbor node, of selecting the neighbor node as atarget node for a handover procedure, a cell selection procedure, or acell reselection procedure; and transmit the cost parameter.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a control nodein a wireless multi-hop network, may cause the one or more processorsto: receive a set of cost parameters corresponding to a set of neighbornodes in the wireless multi-hop network, wherein each cost parameterindicates a cost, due to an operating mode of a respective neighbornode, of selecting the respective neighbor node as a target node for ahandover procedure; select a neighbor node, of the set of neighbornodes, as the target node for the handover procedure based at least inpart on the set of cost parameters; and instruct the selected neighbornode to perform the handover procedure.

In some aspects, an apparatus for wireless communication may includemeans for receiving a cost parameter from a neighbor node in thewireless multi-hop network, wherein the cost parameter indicates a cost,due to an operating mode of the neighbor node, of selecting the neighbornode as a target node for a handover procedure, a cell selectionprocedure, or a cell reselection procedure; and means for performing thehandover procedure, the cell selection procedure, or the cellreselection procedure based at least in part on the cost parameter.

In some aspects, an apparatus for wireless communication may includemeans for receiving a cost parameter associated with a neighbor node inthe wireless multi-hop network, wherein the cost parameter indicates acost, due to an operating mode of the neighbor node, of selecting theneighbor node as a target node for a handover procedure; and means forperforming the handover procedure based at least in part on the costparameter.

In some aspects, an apparatus for wireless communication may includemeans for determining a cost parameter that indicates a cost, due to anoperating mode of the apparatus, of selecting the apparatus as a targetnode for a handover procedure, a cell selection procedure, or a cellreselection procedure; and means for transmitting the cost parameter.

In some aspects, an apparatus for wireless communication may includemeans for receiving a set of cost parameters corresponding to a set ofneighbor nodes in the wireless multi-hop network, wherein each costparameter indicates a cost, due to an operating mode of a respectiveneighbor node, of selecting the respective neighbor node as a targetnode for a handover procedure; means for selecting a neighbor node, ofthe set of neighbor nodes, as the target node for the handover procedurebased at least in part on the set of cost parameters; and means forinstructing the selected neighbor node to perform the handoverprocedure.

Aspects generally include a method, apparatus, system, computer programproduct, non-transitory computer-readable medium, user equipment, basestation, node, wireless node, child node, parent node, serving node,control node, central unit, wireless communication device, and/orprocessing system as substantially described herein with reference toand as illustrated by the accompanying drawings and specification.

The foregoing has outlined rather broadly the features and technicaladvantages of examples according to the disclosure in order that thedetailed description that follows may be better understood. Additionalfeatures and advantages will be described hereinafter. The conceptionand specific examples disclosed may be readily utilized as a basis formodifying or designing other structures for carrying out the samepurposes of the present disclosure. Such equivalent constructions do notdepart from the scope of the appended claims. Characteristics of theconcepts disclosed herein, both their organization and method ofoperation, together with associated advantages will be better understoodfrom the following description when considered in connection with theaccompanying figures. Each of the figures is provided for the purposesof illustration and description, and not as a definition of the limitsof the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

So that the above-recited features of the present disclosure can beunderstood in detail, a more particular description, briefly summarizedabove, may be had by reference to aspects, some of which are illustratedin the appended drawings. It is to be noted, however, that the appendeddrawings illustrate only certain typical aspects of this disclosure andare therefore not to be considered limiting of its scope, for thedescription may admit to other equally effective aspects. The samereference numbers in different drawings may identify the same or similarelements.

FIG. 1 is a diagram illustrating an example of a wireless network, inaccordance with various aspects of the present disclosure.

FIG. 2 is a diagram illustrating an example of a base station and a UEin a wireless network, in accordance with various aspects of the presentdisclosure.

FIG. 3 is a diagram illustrating examples of radio access networks, inaccordance with various aspects of the disclosure.

FIG. 4 is a diagram illustrating an example of an integrated access andbackhaul (IAB) network architecture, in accordance with various aspectsof the present disclosure.

FIG. 5 is a diagram illustrating an example of a handover procedure inan IAB network, in accordance with various aspects of the presentdisclosure.

FIG. 6 is a diagram illustrating an example of various operating modesof nodes in an IAB network, in accordance with various aspects of thepresent disclosure.

FIGS. 7-9 are diagrams illustrating examples of selecting a neighbornode in a wireless multi-hop network using a cost parameter, inaccordance with various aspects of the present disclosure.

FIGS. 10-13 are diagrams illustrating example processes relating toselecting a neighbor node in a wireless multi-hop network using a costparameter, in accordance with various aspects of the present disclosure.

FIGS. 14-17 are block diagrams of example apparatuses for wirelesscommunication, in accordance with various aspects of the presentdisclosure.

DETAILED DESCRIPTION

Various aspects of the disclosure are described more fully hereinafterwith reference to the accompanying drawings. This disclosure may,however, be embodied in many different forms and should not be construedas limited to any specific structure or function presented throughoutthis disclosure. Rather, these aspects are provided so that thisdisclosure will be thorough and complete, and will fully convey thescope of the disclosure to those skilled in the art. Based on theteachings herein one skilled in the art should appreciate that the scopeof the disclosure is intended to cover any aspect of the disclosuredisclosed herein, whether implemented independently of or combined withany other aspect of the disclosure. For example, an apparatus may beimplemented or a method may be practiced using any number of the aspectsset forth herein. In addition, the scope of the disclosure is intendedto cover such an apparatus or method which is practiced using otherstructure, functionality, or structure and functionality in addition toor other than the various aspects of the disclosure set forth herein. Itshould be understood that any aspect of the disclosure disclosed hereinmay be embodied by one or more elements of a claim.

Several aspects of telecommunication systems will now be presented withreference to various apparatuses and techniques. These apparatuses andtechniques will be described in the following detailed description andillustrated in the accompanying drawings by various blocks, modules,components, circuits, steps, processes, algorithms, and/or the like(collectively referred to as “elements”). These elements may beimplemented using hardware, software, or combinations thereof. Whethersuch elements are implemented as hardware or software depends upon theparticular application and design constraints imposed on the overallsystem.

It should be noted that while aspects may be described herein usingterminology commonly associated with 3G and/or 4G wireless technologies,aspects of the present disclosure can be applied in othergeneration-based communication systems, such as 5G and later, includingNR technologies.

FIG. 1 is a diagram illustrating an example of a wireless network 100,in accordance with various aspects of the present disclosure. Thewireless network 100 may be an LTE network or some other wirelessnetwork, such as a 5G or NR network. The wireless network 100 mayinclude a number of BSs 110 (shown as BS 110 a, BS 110 b, BS 110 c, andBS 110 d) and other network entities. A BS is an entity thatcommunicates with user equipment (UEs) and may also be referred to as abase station, a NR BS, a Node B, a gNB, a 5G node B (NB), an accesspoint, a transmit receive point (TRP), and/or the like. Each BS mayprovide communication coverage for a particular geographic area. In3GPP, the term “cell” can refer to a coverage area of a BS and/or a BSsubsystem serving this coverage area, depending on the context in whichthe term is used.

A BS may provide communication coverage for a macro cell, a pico cell, afemto cell, and/or another type of cell. A macro cell may cover arelatively large geographic area (e.g., several kilometers in radius)and may allow unrestricted access by UEs with service subscription. Apico cell may cover a relatively small geographic area and may allowunrestricted access by UEs with service subscription. A femto cell maycover a relatively small geographic area (e.g., a home) and may allowrestricted access by UEs having association with the femto cell (e.g.,UEs in a closed subscriber group (CSG)). A BS for a macro cell may bereferred to as a macro BS. A BS for a pico cell may be referred to as apico BS. A BS for a femto cell may be referred to as a femto BS or ahome BS. In the example shown in FIG. 1 , a BS 110 a may be a macro BSfor a macro cell 102 a, a BS 110 b may be a pico BS for a pico cell 102b, and a BS 110 c may be a femto BS for a femto cell 102 c. A BS maysupport one or multiple (e.g., three) cells. The terms “eNB”, “basestation”, “NR BS”, “gNB”, “ITRP”, “AP”, “node B”, “5G NB”, and “cell”may be used interchangeably herein.

In some aspects, a cell may not necessarily be stationary, and thegeographic area of the cell may move according to the location of amobile BS. In some aspects, the BSs may be interconnected to one anotherand/or to one or more other BSs or network nodes (not shown) in thewireless network 100 through various types of backhaul interfaces suchas a direct physical connection, a virtual network, and/or the likeusing any suitable transport network.

Wireless network 100 may also include relay stations. A relay station isan entity that can receive a transmission of data from an upstreamstation (e.g., a BS or a UE) and send a transmission of the data to adownstream station (e.g., a UE or a BS). A relay station may also be aUE that can relay transmissions for other UEs. In the example shown inFIG. 1 , a relay station 110 d may communicate with macro BS 110 a and aUE 120 d in order to facilitate communication between BS 110 a and UE120 d. A relay station may also be referred to as a relay BS, a relaybase station, a relay, and/or the like.

Wireless network 100 may be a heterogeneous network that includes BSs ofdifferent types, e.g., macro BSs, pico BSs, femto BSs, relay BSs, and/orthe like. These different types of BSs may have different transmit powerlevels, different coverage areas, and different impacts on interferencein wireless network 100. For example, macro BSs may have a high transmitpower level (e.g., 5 to 40 watts) whereas pico BSs, femto BSs, and relayBSs may have lower transmit power levels (e.g., 0.1 to 2 watts).

A network controller 130 may couple to a set of BSs and may providecoordination and control for these BSs. Network controller 130 maycommunicate with the BSs via a backhaul. The BSs may also communicatewith one another, e.g., directly or indirectly via a wireless orwireline backhaul.

UEs 120 (e.g., 120 a, 120 b, 120 c) may be dispersed throughout wirelessnetwork 100, and each UE may be stationary or mobile. A UE may also bereferred to as an access terminal, a terminal, a mobile station, asubscriber unit, a station, and/or the like. A UE may be a cellularphone (e.g., a smart phone), a personal digital assistant (PDA), awireless modem, a wireless communication device, a handheld device, alaptop computer, a cordless phone, a wireless local loop (WLL) station,a tablet, a camera, a gaming device, a netbook, a smartbook, anultrabook, a medical device or equipment, biometric sensors/devices,wearable devices (smart watches, smart clothing, smart glasses, smartwrist bands, smart jewelry (e.g., smart ring, smart bracelet)), anentertainment device (e.g., a music or video device, or a satelliteradio), a vehicular component or sensor, smart meters/sensors,industrial manufacturing equipment, a global positioning system device,or any other suitable device that is configured to communicate via awireless or wired medium.

Some UEs may be considered machine-type communication (MTC) or evolvedor enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEsinclude, for example, robots, drones, remote devices, sensors, meters,monitors, location tags, and/or the like, that may communicate with abase station, another device (e.g., remote device), or some otherentity. A wireless node may provide, for example, connectivity for or toa network (e.g., a wide area network such as Internet or a cellularnetwork) via a wired or wireless communication link. Some UEs may beconsidered Internet-of-Things (IoT) devices, and/or may be implementedas NB-IoT (narrowband internet of things) devices. Some UEs may beconsidered a Customer Premises Equipment (CPE). UE 120 may be includedinside a housing that houses components of UE 120, such as processorcomponents, memory components, and/or the like.

In general, any number of wireless networks may be deployed in a givengeographic area. Each wireless network may support a particular RAT andmay operate on one or more frequencies. A RAT may also be referred to asa radio technology, an air interface, and/or the like. A frequency mayalso be referred to as a carrier, a frequency channel, and/or the like.Each frequency may support a single RAT in a given geographic area inorder to avoid interference between wireless networks of different RATs.In some cases, NR or 5G RAT networks may be deployed.

In some aspects, two or more UEs 120 (e.g., shown as UE 120 a and UE 120e) may communicate directly using one or more sidelink channels (e.g.,without using a base station 110 as an intermediary to communicate withone another). For example, the UEs 120 may communicate usingpeer-to-peer (P2P) communications, device-to-device (D2D)communications, a vehicle-to-everything (V2X) protocol (e.g., which mayinclude a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure(V2I) protocol, and/or the like), a mesh network, and/or the like. Inthis case, the UE 120 may perform scheduling operations, resourceselection operations, and/or other operations described elsewhere hereinas being performed by the base station 110.

As indicated above, FIG. 1 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 1 .

FIG. 2 is a diagram illustrating an example 200 of a base station 110and a UE 120 in a wireless network, in accordance with various aspectsof the present disclosure. The base station 110 and the UE 120 may beone of the base stations and one of the UEs in FIG. 1 , respectively.Base station 110 may be equipped with T antennas 234 a through 234 t,and UE 120 may be equipped with R antennas 252 a through 252 r, where ingeneral T≥1 and R≥1.

At base station 110, a transmit processor 220 may receive data from adata source 212 for one or more UEs, select one or more modulation andcoding schemes (MCS) for each UE based at least in part on channelquality indicators (CQIs) received from the UE, process (e.g., encodeand modulate) the data for each UE based at least in part on the MCS(s)selected for the UE, and provide data symbols for all UEs. Transmitprocessor 220 may also process system information (e.g., for semi-staticresource partitioning information (SRPI) and/or the like) and controlinformation (e.g., CQI requests, grants, upper layer signaling, and/orthe like) and provide overhead symbols and control symbols. Transmitprocessor 220 may also generate reference symbols for reference signals(e.g., the cell-specific reference signal (CRS)) and synchronizationsignals (e.g., the primary synchronization signal (PSS) and secondarysynchronization signal (SSS)). A transmit (TX) multiple-inputmultiple-output (MIMO) processor 230 may perform spatial processing(e.g., precoding) on the data symbols, the control symbols, the overheadsymbols, and/or the reference symbols, if applicable, and may provide Toutput symbol streams to T modulators (MODs) 232 a through 232 t. Eachmodulator 232 may process a respective output symbol stream (e.g., forOFDM and/or the like) to obtain an output sample stream. Each modulator232 may further process (e.g., convert to analog, amplify, filter, andupconvert) the output sample stream to obtain a downlink signal. Tdownlink signals from modulators 232 a through 232 t may be transmittedvia T antennas 234 a through 234 t, respectively. According to variousaspects described in more detail below, the synchronization signals canbe generated with location encoding to convey additional information.

At UE 120, antennas 252 a through 252 r may receive the downlink signalsfrom base station 110 and/or other base stations and may providereceived signals to demodulators (DEMODs) 254 a through 254 r,respectively. Each demodulator 254 may condition (e.g., filter, amplify,downconvert, and digitize) a received signal to obtain input samples.Each demodulator 254 may further process the input samples (e.g., forOFDM and/or the like) to obtain received symbols. A MIMO detector 256may obtain received symbols from all R demodulators 254 a through 254 r,perform MIMO detection on the received symbols if applicable, andprovide detected symbols. A receive processor 258 may process (e.g.,demodulate and decode) the detected symbols, provide decoded data for UE120 to a data sink 260, and provide decoded control information andsystem information to a controller/processor 280. A channel processormay determine reference signal received power (RSRP), received signalstrength indicator (RSSI), reference signal received quality (RSRQ),channel quality indicator (CQI), and/or the like. In some aspects, oneor more components of UE 120 may be included in a housing 284.

On the uplink, at UE 120, a transmit processor 264 may receive andprocess data from a data source 262 and control information (e.g., forreports comprising RSRP, RSSI, RSRQ, CQI, and/or the like) fromcontroller/processor 280. Transmit processor 264 may also generatereference symbols for one or more reference signals. The symbols fromtransmit processor 264 may be precoded by a TX MIMO processor 266 ifapplicable, further processed by modulators 254 a through 254 r (e.g.,for DFT-s-OFDM, CP-OFDM, and/or the like), and transmitted to basestation 110. At base station 110, the uplink signals from UE 120 andother UEs may be received by antennas 234, processed by demodulators232, detected by a MIMO detector 236 if applicable, and furtherprocessed by a receive processor 238 to obtain decoded data and controlinformation sent by UE 120. Receive processor 238 may provide thedecoded data to a data sink 239 and the decoded control information tocontroller/processor 240. Base station 110 may include communicationunit 244 and communicate to network controller 130 via communicationunit 244. Network controller 130 may include communication unit 294,controller/processor 290, and memory 292.

Controller/processor 240 of base station 110, controller/processor 280of UE 120, and/or any other component(s) of FIG. 2 may perform one ormore techniques associated with selecting a neighbor node in a wirelessmulti-hop network using a cost parameter, as described in more detailelsewhere herein. For example, controller/processor 240 of base station110, controller/processor 280 of UE 120, and/or any other component(s)of FIG. 2 may perform or direct operations of, for example, process 1000of FIG. 10 , process 1100 of FIG. 11 , process 1200 of FIG. 12 , process1300 of FIG. 13 , and/or other processes as described herein. Memories242 and 282 may store data and program codes for base station 110 and UE120, respectively. In some aspects, memory 242 and/or memory 282 maycomprise a non-transitory computer-readable medium storing one or moreinstructions for wireless communication. For example, the one or moreinstructions, when executed by one or more processors of the basestation 110 and/or the UE 120, may perform or direct operations of, forexample, process 1000 of FIG. 10 , process 1100 of FIG. 11 , process1200 of FIG. 12 , process 1300 of FIG. 13 , and/or other processes asdescribed herein. A scheduler 246 may schedule UEs for data transmissionon the downlink and/or uplink.

In some aspects, the components described in connection with networkcontroller 130 and/or base station 110 may be included in a central unit(CU) of an IAB donor, the components described in connection with basestation 110 may be included in a distributed unit (DU) of an IAB donorand/or an IAB node, and/or the components described in connection withUE 120 may be included in a mobile termination (MT) of an IAB node.

In some aspects, a child node (e.g., an IAB node, a UE 120, and/or thelike) in a wireless multi-hop network may include means for receiving acost parameter from a neighbor node in the wireless multi-hop network,wherein the cost parameter indicates a cost, due to an operating mode ofthe neighbor node, of selecting the neighbor node as a target node for ahandover procedure, a cell selection procedure, or a cell reselectionprocedure; means for performing the handover procedure, the cellselection procedure, or the cell reselection procedure based at least inpart on the cost parameter; and/or the like. In some aspects, such meansmay include one or more components of UE 120 (which may correspond to anMT of an IAB node) described in connection with FIG. 2 , such ascontroller/processor 280, transmit processor 264, TX MIMO processor 266,MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor258, and/or the like.

In some aspects, a serving node (e.g., an IAB node) in a wirelessmulti-hop network may include means for receiving a cost parameterassociated with a neighbor node in the wireless multi-hop network,wherein the cost parameter indicates a cost, due to an operating mode ofthe neighbor node, of selecting the neighbor node as a target node for ahandover procedure; means for performing the handover procedure based atleast in part on the cost parameter; and/or the like. In some aspects,such means may include one or more components of base station 110 (whichmay correspond to a DU of the IAB node) described in connection withFIG. 2 , such as antenna 234, DEMOD 232, MIMO detector 236, receiveprocessor 238, controller/processor 240, transmit processor 220, TX MIMOprocessor 230, MOD 232, antenna 234, and/or the like.

In some aspects, a neighbor node (e.g., an IAB node) in a wirelessmulti-hop network may include means for determining a cost parameterthat indicates a cost, due to an operating mode of the neighbor node, ofselecting the neighbor node as a target node for a handover procedure, acell selection procedure, or a cell reselection procedure; means fortransmitting the cost parameter; and/or the like. In some aspects, suchmeans may include one or more components of base station 110 (which maycorrespond to a DU of the neighbor node) described in connection withFIG. 2 , such as antenna 234, DEMOD 232, MIMO detector 236, receiveprocessor 238, controller/processor 240, transmit processor 220, TX MIMOprocessor 230, MOD 232, antenna 234, and/or the like.

In some aspects, a control node (e.g., an IAB donor, an IAB node, and/orthe like) in a wireless multi-hop network may include means forreceiving a set of cost parameters corresponding to a set of neighbornodes in the wireless multi-hop network, wherein each cost parameterindicates a cost, due to an operating mode of a respective neighbornode, of selecting the respective neighbor node as a target node for ahandover procedure; means for selecting a neighbor node, of the set ofneighbor nodes, as the target node for the handover procedure based atleast in part on the set of cost parameters; means for instructing theselected neighbor node to perform the handover procedure; and/or thelike. In some aspects, such means may include one or more components ofbase station 110 and/or network controller 130 (one or both of which maycorrespond to the control node) described in connection with FIG. 2 ,such as antenna 234, DEMOD 232, MIMO detector 236, receive processor238, controller/processor 240, transmit processor 220, TX MIMO processor230, MOD 232, antenna 234, controller/processor 290, memory 292,communication unit 294, and/or the like.

As indicated above, FIG. 2 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 2 .

FIG. 3 is a diagram illustrating examples 300 of radio access networks,in accordance with various aspects of the disclosure.

As shown by reference number 305, a traditional (e.g., 3G, 4G, LTE,and/or the like) radio access network may include multiple base stations310 (e.g., access nodes (AN)), where each base station 310 communicateswith a core network via a wired backhaul link 315, such as a fiberconnection. A base station 310 may communicate with a UE 320 via anaccess link 325, which may be a wireless link. In some aspects, a basestation 310 shown in FIG. 3 may correspond to a base station 110 shownin FIG. 1 . Similarly, a UE 320 shown in FIG. 3 may correspond to a UE120 shown in FIG. 1 .

As shown by reference number 330, a radio access network may include awireless backhaul network, sometimes referred to as an integrated accessand backhaul (IAB) network. An IAB network is a type of wirelessmulti-hop network. In an IAB network, at least one base station is ananchor base station 335 that communicates with a core network via awired backhaul link 340, such as a fiber connection. An anchor basestation 335 may also be referred to as an IAB donor (or IAB-donor). TheIAB network may include one or more non-anchor base stations 345,sometimes referred to as relay base stations, IAB nodes (or IAB-nodes),and/or the like. The non-anchor base station 345 may communicatedirectly with or indirectly with (e.g., via one or more non-anchor basestations 345) the anchor base station 335 via one or more backhaul links350 to form a backhaul path (or route) to the core network for carryingbackhaul traffic. Backhaul link 350 may be a wireless link. Anchor basestation(s) 335 and/or non-anchor base station(s) 345 may communicatewith one or more UEs 355 via access links 360, which may be wirelesslinks for carrying access traffic. In some aspects, an anchor basestation 335 and/or a non-anchor base station 345 shown in FIG. 3 maycorrespond to a base station 110 shown in FIG. 1 . Similarly, a UE 355shown in FIG. 3 may correspond to a UE 120 shown in FIG. 1 .

As shown by reference number 365, in some aspects, a radio accessnetwork that includes an IAB network may utilize millimeter wavetechnology and/or directional communications (e.g., beamforming,precoding and/or the like) for communications between base stationsand/or UEs (e.g., between two base stations, between two UEs, and/orbetween a base station and a UE). For example, wireless backhaul links370 between base stations may use millimeter waves to carry informationand/or may be directed toward a target base station using beamforming,precoding, and/or the like. Similarly, the wireless access links 375between a UE and a base station may use millimeter waves and/or may bedirected toward a target wireless node (e.g., a UE and/or a basestation). In this way, inter-link interference may be reduced.

The configuration of base stations and UEs in FIG. 3 is shown as anexample, and other examples are contemplated. For example, one or morebase stations illustrated in FIG. 3 may be replaced by one or more UEsthat communicate via a UE-to-UE access network (e.g., a peer-to-peernetwork, a device-to-device network, and/or the like). In this case,“anchor node” may refer to a UE that is directly in communication with abase station (e.g., an anchor base station or a non-anchor basestation).

As indicated above, FIG. 3 is provided as an example. Other examples maydiffer from what was described with regard to FIG. 3 .

FIG. 4 is a diagram illustrating an example 400 of an IAB networkarchitecture, in accordance with various aspects of the disclosure.

As shown in FIG. 4 , an IAB network may include an IAB donor 405 (shownas IAB-donor 405) that connects to a core network via a wired connection(shown as a wireline backhaul). For example, an Ng interface of an IABdonor 405 may terminate at a core network. Additionally, oralternatively, an IAB donor 405 may connect to one or more devices ofthe core network that provide an access and mobility management function(e.g., AMF). In some aspects, an IAB donor 405 may include a basestation 110, such as an anchor base station, as described above inconnection with FIG. 3 . As shown, an IAB donor 405 may include acentral unit (CU), which may perform access node controller (ANC)functions, AMF functions, and/or the like. The CU may configure adistributed unit (DU) of the IAB donor 405 and/or may configure one ormore IAB nodes 410 (e.g., an MT and/or a DU of an IAB node 410) thatconnect to the core network via the IAB donor 405. Thus, a CU of an IABdonor 405 may control and/or configure the entire IAB network thatconnects to the core network via the IAB donor 405, such as by usingcontrol messages and/or configuration messages (e.g., a radio resourcecontrol (RRC) configuration message and/or the like). In some aspects, acontrol and/or configuration message may be carried via an F1application protocol (F1-AP) interface.

As further shown in FIG. 4 , the IAB network may include IAB nodes 410(shown as IAB-node 1 and IAB-node 2) that connect to the core networkvia the IAB donor 405. As shown, an IAB node 410 may include mobiletermination (MT) functions (sometimes referred to as UE functions(UEF)), and may include DU functions (sometimes referred to as accessnode functions (ANF)). The MT functions of an IAB node 410 (e.g., achild node) may be controlled and/or scheduled by another IAB node 410(e.g., a parent node of the child node) and/or by an IAB donor 405. TheDU functions of an IAB node 410 (e.g., a parent node) may control and/orschedule other IAB nodes 410 (e.g., child nodes of the parent node)and/or UEs 120. Thus, a DU may be referred to as a scheduling node or ascheduling component, and an MT may be referred to as a scheduled nodeor a scheduled component. In some aspects, an IAB donor 405 may includeDU functions and not MT functions. That is, an IAB donor 405 mayconfigure, control, and/or schedule communications of IAB nodes 410and/or UEs 120. A UE 120 may include only MT functions, and not DUfunctions. That is, communications of a UE 120 may be controlled and/orscheduled by an IAB donor 405 and/or an IAB node 410 (e.g., a parentnode of the UE 120).

When a first node controls and/or schedules communications for a secondnode (e.g., when the first node provides DU functions for the secondnode's MT functions), the first node may be referred to as a parent nodeof the second node, and the second node may be referred to as a childnode of the first node. A child node of the second node may be referredto as a grandchild node of the first node. Thus, a DU function of aparent node may control and/or schedule communications for child nodesof the parent node. A parent node may be an IAB donor 405 or an IAB node410, and a child node may be an IAB node 410 or a UE 120. Communicationsof an MT function of a child node may be controlled and/or scheduled bya parent node of the child node.

As further shown in FIG. 4 , a link between a UE 120 (e.g., which onlyhas MT functions, and not DU functions) and an IAB donor 405, or betweena UE 120 and an IAB node 410, may be referred to as an access link 415.Access link 415 may be a wireless access link that provides a UE 120with radio access to a core network via an IAB donor 405, and optionallyvia one or more IAB nodes 410. Thus, the network illustrated in FIG. 4may be referred to as a wireless multi-hop network.

As further shown in FIG. 4 , a link between an IAB donor 405 and an IABnode 410 or between two IAB nodes 410 may be referred to as a backhaullink 420. Backhaul link 420 may be a wireless backhaul link thatprovides an IAB node 410 with radio access to a core network via an IABdonor 405, and optionally via one or more other IAB nodes 410. In someaspects, a backhaul link 420 may be a primary backhaul link or asecondary backhaul link (e.g., a backup backhaul link). In some aspects,a secondary backhaul link may be used if a primary backhaul link fails,becomes congested, becomes overloaded, and/or the like. As used herein,“node” or “wireless node” may refer to an IAB donor 405 or an IAB node410.

In an IAB network, network resources for wireless communications (e.g.,time resources, frequency resources, spatial resources, and/or the like)may be shared between a parent link 425 of an IAB node 410 (shown aslink 420/425 for IAB-node 1) and a child link 430 of the IAB node 410(shown as link 420/430 for IAB-node 1). When an IAB node 410 uses timedivision multiplexing (TDM) between a parent link 425 and a child link430, the IAB node 410 is subject to a half duplex constraint, meaningthat the IAB node 410 cannot transmit and receive information at thesame time (e.g., cannot concurrently communicate via a parent link 425of the IAB node 410 and a child link 430 of the IAB node 410). Thisconstraint may lead to high latency for communications.

To reduce latency, increase robustness, and expand coverage of an IABnetwork, the IAB network may be over-deployed. For example, there may bemultiple IAB donors 405 and/or IAB nodes 410 with overlapping coverage,there may be multiple routes from a particular UE 120 and/or IAB node410 to another IAB node and/or to the IAB donor 405, and/or the like.For example, because millimeter wave communications have high signalattenuation during propagation, IAB nodes 410 with overlapping coveragemay be deployed to expand coverage in the IAB network and mitigate suchsignal attenuation. Furthermore, because millimeter wave communicationsare susceptible to link blockage and link failure, IAB nodes 410 withoverlapping coverage may be deployed to improve robustness of the IABnetwork.

In an over-deployed IAB network, different IAB nodes 410 may havedifferent operating modes depending on, for example, a number of childnodes and/or UEs 120 served by the IAB node 410, an amount of trafficserved by the IAB node 410, a power status of the IAB node 410 (e.g.,whether the IAB node 410 is operating using battery power or alternatingcurrent (AC) power, a remaining battery life of the IAB node 410, and/orthe like), a power saving mode of the IAB node 410, and/or the like. Toconserve energy and battery power, an IAB node 410 may enter anoperating mode with low energy consumption when network activity (e.g.,a number of child nodes and/or UEs 120 to be served, an amount ofnetwork traffic, and/or the like) in a coverage area of the IAB node 410is low and/or if other IAB nodes 410 in that coverage area are capableof handling the network activity. Conversely, if network activity in acoverage area of an IAB node 410 is high and/or if other IAB nodes 410in that coverage area are not capable of handling the network activity(or are not present in the coverage area), then the IAB node 410 mayenter an operating mode with high energy consumption.

During a handover procedure, a UE 120 and/or a child node may be handedover from a serving node (e.g., a first parent node) to a target node(e.g., a second parent node). During a cell selection procedure and/or acell reselection procedure, a UE 120 and/or a child node may select atarget node to serve the UE 120 (e.g., as a serving node). In anover-deployed IAB network, there may be multiple neighbor nodes thatsatisfy a handover condition (e.g., criteria) and/or a cell selectioncondition, and that are candidates for the target node. However, themultiple neighbor nodes may have different operating modes, such thatselection of a first neighbor node over a second neighbor node providespoorer performance even if the first neighbor node is associated withbetter parameters (e.g., an RSRP parameter and/or the like) for handoveror cell selection as compared to the second neighbor node. For example,the first neighbor node may be in a power saving mode, may be operatingusing battery power, may have low remaining battery life, may have along route to an IAB donor 405, and/or the like. In this case, selectionof the first neighbor node using traditional procedures and/orparameters for handover or cell selection would result in worseperformance than selection of the second neighbor node. Some techniquesand apparatuses described herein account for operating modes of neighbornodes when performing a handover procedure and/or a cell selectionprocedure (e.g., including a cell reselection procedure), therebyimproving performance of the IAB network.

As indicated above, FIG. 4 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 4 .

FIG. 5 is a diagram illustrating an example 500 of a handover procedurein an IAB network, in accordance with various aspects of the presentdisclosure.

As shown in FIG. 5 , a handover procedure in an IAB network may involvea child node 505 (e.g., a UE, an MT of an IAB node, and/or the like), aserving node 510 that serves the child node 505 prior to handover, atarget node 515 (e.g., selected from a set of neighbor nodes) thatserves the child node 505 after handover, and a control node 520. Thecontrol node 520 may communicate with the serving node 510 and thetarget node 515 to initiate, set up, and/or otherwise assist in orinstruct on the handover procedure. In some aspects, the control node520 may be the same as the serving node 510 (e.g., operations describedherein as being performed by the control node 520 may be performed bythe serving node 510). In some aspects, the control node 520 may be aparent node of the serving node 510 and/or a parent node of the targetnode 515. In some aspects, the control node 520 may be an IAB donor 405(e.g., a CU of an IAB donor 405).

As shown by reference number 525, the child node 505 may receive one ormore reference signals from a set of neighbor nodes including the targetnode 515. The one or more reference signals may include, for example,one or more synchronization signal blocks (SSBs), one or moresynchronization signal (SS) and/or physical broadcast channel (SS/PBCH)blocks, and/or the like. The child node 505 may perform measurements onthe received reference signals, such as RSRP measurements, RSRQmeasurements, RSSI measurements, signal-to-interference-plus-noise ratio(SINR) measurements, and/or the like.

As shown by reference number 530, the child node 505 may report themeasurements of the reference signals of the set of neighbor nodes tothe serving node 510, such as in a measurement report. As shown byreference number 535, the serving node 510 may provide the measurementreport to the control node 520 responsible for selecting a target node,from the set of neighbor nodes, for handover. As shown by referencenumber 540, the control node 520 may select the target node 515 (e.g.,if a handover condition is satisfied), and may communicate with theserving node 510 and the target node 515 to initiate, set up, and/orotherwise assist in or instruct on the handover procedure.

As shown by reference number 545, the serving node 510 may transmit ahandover command to the child node 505. The handover command mayindicate the target node 515 to which the child node 505 is to be handedover (e.g., as instructed by the control node 520 to the serving node510). As shown by reference number 550, the child node 505 may perform arandom access channel (RACH) procedure to connect to the target node 515based at least in part on receiving the handover command that identifiesthe target node 515. After the handover procedure is complete, the childnode 505 may be served by the target node 515 and not the serving node510.

As indicated above, FIG. 5 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 5 .

FIG. 6 is a diagram illustrating an example 600 of various operatingmodes of nodes in an IAB network, in accordance with various aspects ofthe present disclosure.

As shown in FIG. 6 , different nodes (e.g., IAB nodes 410) in an IABnetwork may operate in different operating modes (e.g., at a given pointin time). For example, a serving node 605 of a child node (e.g., aUE/MT) may operate in a high energy consumption state. The serving node605 may operate in the high energy consumption state due to serving anumber (e.g., a quantity) of child nodes that satisfies a threshold, dueto serving an amount of network traffic that satisfies a threshold, dueto being powered by AC power, due to having a remaining amount ofbattery life that satisfies a threshold, and/or the like. In the highenergy consumption state, the serving node 605 may be fully active, mayhave more features enabled than a node in a lower energy consumptionstate, may perform one or more operations (e.g., transmissions,reference signal transmissions, paging, and/or the like) more frequentlythan a node in a lower energy consumption state, and/or the like.

As another example, a first neighbor node 610 may operate in a lowenergy consumption state. The first neighbor node 610 may operate in thelow energy consumption state due to serving a number of child nodes thatdoes not satisfy a threshold, due to serving an amount of networktraffic that does not satisfy a threshold, due to being powered bybattery power, due to having a remaining amount of battery life thatdoes not satisfy a threshold, and/or the like. In the low energyconsumption state, the first neighbor node 610 may be in a deep sleepmode and/or a power saving mode, may have fewer features enabled than anode in a higher energy consumption state, may perform one or moreoperations (e.g., transmissions, reference signal transmissions, paging,and/or the like) less frequently than a node in a higher energyconsumption state, may operate with limited service (e.g., may provideonly emergency service), and/or the like. In some aspects, in the lowenergy consumption state, the first neighbor node 610 may be powered off(e.g., for battery charging).

As further shown in FIG. 6 , different neighbor nodes 615, 620, 625, and630 may operate in different operating modes within a range of operatingmodes. For example, different operating modes may correspond to servingdifferent numbers of child nodes (e.g., a number of child nodes thatfalls within a threshold range, that is greater than a threshold, thatis less than a threshold, and/or the like), due to serving differentamounts of network traffic (e.g., an amount of network traffic thatfalls within a threshold range, that is greater than a threshold, thatis less than a threshold, and/or the like), due to being powered bybattery power or by AC power, due to having different amounts ofremaining battery life (e.g., an amount of remaining battery life thatfalls within a threshold range, that is greater than a threshold, thatis less than a threshold, and/or the like), due to being in a chargingstate or not being in a charging state, and/or the like.

In some scenarios, the child node 605 may be handed over from theserving node 610 to one of the neighbor nodes, such as due to mobilityof the child node 605 and/or the serving node 610, due to poor linkquality between the child node 605 and the serving node 610, due toactivation of a power saving mode by the serving node 610, and/or thelike. However, as described above, different neighbor nodes may havedifferent operating modes. In this case, selection of a first neighbornode (e.g., neighbor node 610) over a second neighbor node (e.g.,neighbor node 615) may provide poorer performance even if the firstneighbor node is associated with better parameters (e.g., an RSRPparameter and/or the like) for handover as compared to the secondneighbor node. In this case, selection of the first neighbor node usingtraditional procedures and/or parameters for handover or cell selectionwould result in worse performance than selection of the second neighbornode. Some techniques and apparatuses described herein account foroperating modes of neighbor nodes when performing a handover procedure,thereby improving performance of the IAB network. Similarly, sometechniques and apparatuses described herein account for operating modesof neighbor nodes when performing a cell selection procedure (e.g.,including a cell reselection procedure), thereby improving performanceof the IAB network.

As indicated above, FIG. 6 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 6 .

FIG. 7 is a diagram illustrating an example 700 of selecting a neighbornode in a wireless multi-hop network using a cost parameter, inaccordance with various aspects of the present disclosure.

As shown in FIG. 7 , a child node 705 (e.g., a UE, an MT of an IAB node410, and/or the like) may be served by a serving node 710 (e.g., aparent node). The child node 705 may receive reference signals from aset of neighbor nodes, shown as a first neighbor node 715, a secondneighbor node 720, and a third neighbor node 725. The serving node andthe first neighbor node 715 may be controlled by a first control node730. The second neighbor node 720 and the third neighbor node 725 may becontrolled by a second control node 735.

The nodes of FIG. 7 may correspond to nodes of the same name describedabove in connection with FIG. 5 . Thus, as described above in connectionwith FIG. 5 , the child node 705 may include a UE, an MT of an IAB node,and/or the like. The serving node 710 may include an IAB node 410 (e.g.,having a DU function for scheduling communications with the child node705), an IAB donor 405 (e.g., having a CU), a parent node of the childnode 705, and/or the like. The first control node 730 may be the same asthe serving node 710 (e.g., operations described herein as beingperformed by the first control node 730 may be performed by the servingnode 710), may be a parent node of the serving node 710 (and/or of thefirst neighbor node 715), and/or may be an IAB donor 405 (e.g., a CU ofan IAB donor 405). Similarly, the second control node 735 may beintegrated into one of the second neighbor node 720 or the thirdneighbor node 725, may be a parent node of one or both of the secondneighbor node 720 or the third neighbor node 725, and/or may be an IABdonor 405 (e.g., a CU of an IAB donor 405).

As shown by reference number 740, the first neighbor node 715 maydetermine a cost parameter that indicates a cost of selecting the firstneighbor node 715 due to an operating mode of the first neighbor node715. The cost of selecting the first neighbor node 715 may include acost of selecting the first neighbor node 715 for a handover procedure,a cost of selecting the first neighbor node 715 for a cell selectionprocedure, a cost of selecting the first neighbor node 715 for a cellreselection procedure, and/or the like. “Cost of selection” may refer toa penalty associated with such selection, and may be compared to one ormore costs corresponding to one or more other node to determine a nodeto be selected.

In some aspects, a cost parameter for a node may indicate and/or may bedetermined based at least in part on an operating mode of the node. Asdescribed above in connection with FIG. 6 , an operating mode mayindicate an energy consumption state of a node. The energy consumptionstate may be based at least in part on a number of child nodes served bythe node, an amount of network traffic served by or processed by thenode, a number of features enabled for the node, a frequency with whichone or more operations (e.g., transmissions, reference signaltransmissions, paging, and/or the like) are performed by the node,and/or the like. In some aspects, a higher cost may be associated withselecting a node in a low energy consumption state as compared to amedium energy consumption state because the node may be required to exita power consumption state and/or serve a small number of child nodes(e.g., thereby causing inefficiencies). In some aspects, a higher costmay be associated with selecting a node in a high energy consumptionstate as compared to a medium energy consumption state because the nodemay become overloaded with traffic (e.g., thereby increasing latency,reducing reliability, and/or the like).

Additionally, or alternatively, the cost parameter for a node mayindicate and/or may be determined based at least in part on a powerstatus of the node. For example, the power status for a node mayindicate whether the node is powered by AC power or battery power, aremaining amount of battery life of the node (e.g., if powered bybattery power), whether a battery of the node is being charged, a rateat which the battery of the node is being charged, and/or the like. Insome aspects, a higher cost may be associated with selecting a node thatis powered by battery power as compared to AC power because child nodesthat select a node on battery power may later need to select anothernode (e.g., if the battery power becomes low). Similarly, a higher costmay be associated with selecting a node that has a shorter battery lifeas compared to a longer battery life, selecting a node with a batterythat is not being charged as compared to a battery that is beingcharged, selecting a node with a battery that is being charged at a lowrate as compared to a high rate, and/or the like.

Additionally, or alternatively, the cost parameter for a node mayindicate and/or may be determined based at least in part on a hop countassociated with the node. A hop count may indicate a number of hops(e.g., a number of links between nodes) from the node to an IAB donor405. In some aspects, a higher cost may be associated with selecting anode that has a high hop count as compared to a low hop count becauseselecting the node with the high hop count may increase latency.

Additionally, or alternatively, the cost parameter for a node mayindicate and/or may be determined based at least in part on a time atwhich the node is available to serve a child node. For example, a highercost may be associated with selecting a node that is not immediatelyavailable to serve a child node as compared to another node that isimmediately available, because selecting the node that is notimmediately available may increase latency. Similarly, a higher cost maybe associated with selecting a node that is not available to serve achild node until later in time as compared to another node that isavailable to serve the child node earlier in time.

Additionally, or alternatively, the cost parameter for a node mayindicate and/or may be determined based at least in part on a priorityof selecting the node as compared to one or more other nodes. Forexample, an IAB donor 405 (e.g., a CU) may configure a set of nodes inthe IAB network with a corresponding set of priorities. In some aspects,the IAB donor 405 may determine a priority for a node based at least inpart on one or more of the factors described above in connection withdetermining a cost parameter for a node. For example, a node mayindicate one or more of these factors to the IAB donor 405, and/or theIAB donor 405 may configure one or more of these factors for the node.In some aspects, the IAB donor 405 may determine a cost parameter forthe node, and may transmit an indication of the cost parameter to thenode. Alternatively, a node may determine a cost parameter for the node,and/or may transmit the cost parameter to the IAB donor (e.g., a CU,such as via an F1-AP interface). As an example, a priority of a node mayindicate that the node is to be selected as a target node only if noother nodes are available to act as a target node and/or if no othernodes are detected by the child node 705.

Additionally, or alternatively, the cost parameter for a node mayindicate and/or may be determined based at least in part on one or morecost parameters (and/or one or more factors described above fordetermining a cost parameter) for one or more nodes included in a routefrom the node to an IAB donor 405. Thus, the cost parameter for a nodemay depend on an operating mode of the node and one or more operatingmodes corresponding to one or more nodes included in a route from thenode to an IAB donor 405.

As shown by reference number 745, the first neighbor node 715 maytransmit the cost parameter. As shown, the first neighbor node 715 maytransmit the cost parameter to the child node 705, to the serving node710, and/or to the control node 730. In some aspects, the first neighbornode 715 may transmit the cost parameter in a broadcast message so thata single transmission by the first neighbor node 715 can be received bymultiple nodes. For example, the first neighbor node 715 may transmitthe cost parameter via a synchronization signal block (SSB), a physicalbroadcast channel (PBCH), an SS/PBCH block, a system information block(SIB), remaining minimum system information (RMSI), a channel stateinformation reference signal (CSI-RS), another type of reference signal,and/or the like.

In some aspects, the first neighbor node 715 may transmit the costparameter based at least in part on determining that the operating modeof the first neighbor node satisfies a condition. For example, one ormore operating modes may be defined as default operating modes, andother nodes in the IAB network may assume that a neighbor node isoperating in a default operating mode unless a cost parameter isreceived from the neighbor node. For example, a node may transmit thecost parameter if the cost parameter is greater than or equal to athreshold (e.g., indicating a high cost of selecting the node). In thisway, network overhead associated with signaling the cost parameter maybe reduced. In some aspects, a node may transmit the cost parameterregardless of an operating mode of the node.

In some aspects, a node may periodically update (e.g., determine orredetermine) the cost parameter, and/or may periodically transmit thecost parameter. Additionally, or alternatively, the node may updateand/or transmit the cost parameter based at least in part on detectingan event. The event may include, for example, a change in the operatingmode of the node (e.g., to a different state, by a threshold amount,and/or the like), a change in the cost parameter (e.g., by a thresholdamount), a change in an operating mode and/or a cost parameter ofanother node associated with the node (e.g., a parent node of the node,a node included in a route to an IAB donor 405, and/or the like), achange in a power status of the node or of another node associated withthe node (e.g., a parent node of the node, a node included in a route toan IAB donor 405, and/or the like), a change in network topology (e.g.,a change in a combination of nodes included in a route to an IAB donor405, a change in an IAB donor 405 that configures the node, a change ina hop count from the node to the IAB donor 405, and/or the like), and/orthe like.

In FIG. 7 , the first neighbor node 715 is shown as determining andtransmitting a cost parameter associated with the first neighbor node715. Similarly, the second neighbor node 720 may determine and transmita cost parameter associated with the second neighbor node 720, the thirdneighbor node 725 may determine and transmit a cost parameter associatedwith the third neighbor node 725, and so on. In this way, the child node705, the serving node 710, and/or the control nodes 730, 735 may accountfor operating modes of neighbor nodes when performing a handoverprocedure and/or a cell selection procedure (e.g., including a cellreselection procedure), thereby improving performance of the IABnetwork.

As indicated above, FIG. 7 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 7 .

FIG. 8 is a diagram illustrating an example 800 of selecting a neighbornode in a wireless multi-hop network using a cost parameter, inaccordance with various aspects of the present disclosure.

As shown by reference number 805, a child node 705 may receive a costparameter from one or more neighbor nodes in a wireless multi-hopnetwork (e.g., an IAB network), as described above in connection withFIG. 7 . Continuing with example 700 of FIG. 7 , the child node 705 isshown as receiving a first cost parameter from the first neighbor node715, receiving a second cost parameter from the second neighbor node720, and receiving a third cost parameter from the third neighbor node725. As described above, the cost parameter for a node may indicate acost, due to an operating mode of the node, of selecting the node as atarget node for a handover procedure, a cell selection procedure, and/ora cell reselection procedure. The child node 705 may perform thehandover procedure, the cell selection procedure, or the cellreselection procedure based at least in part on a cost parameterreceived from a neighbor node (or a set of cost parameters received froma set of neighbor nodes). In example 800, the child node 705 may performthe handover procedure, the cell selection procedure, or the cellreselection procedure based at least in part on the first costparameter, the second cost parameter, and the third cost parameter.

As shown by reference number 810, for a cell selection (or a cellreselection) procedure, the child node 705 may determine a cell priorityfor cell selection (or cell reselection) based at least in part on acost parameter. For example, the child node 705 may store a cellpriority list that prioritizes cells (e.g., of nodes) for selection,with a higher priority cell being indicated higher or earlier in thelist. When performing cell selection or reselection, the child node 705may attempt to connect to cells in the order indicated in the cellpriority list. For example, the child node 705 may attempt to connect toa highest priority cell first. If the connection attempt fails, then thechild node 705 may attempt to connect to a second-high priority cell,and so on.

In some aspects, the child node 705 may remove a node (e.g., a cellassociated with the node) from the cell priority list if a costparameter for the node fails to satisfy a condition. For example, thechild node 705 may remove a node from the cell priority list if the nodeis associated with a cost parameter that indicates a cost that isgreater than a threshold. In example 800, this is shown as removing thesecond neighbor node 720 from the cell priority list.

Additionally, or alternatively, the child node 705 may modify a priorityof a node and/or a relative priority between nodes based at least inpart on respective cost parameters of those nodes. In example 800, thethird neighbor node 725 has a better RSRP parameter than the firstneighbor node 715, so the third neighbor node 725 would normally have ahigher priority than the first neighbor node 715. However, the firstneighbor node 715 is associated with a better cost parameter than thethird neighbor node 725, so the child node 705 is shown as switching arelative priority of the first neighbor node 715 and the third neighbornode 725 to prioritize the first neighbor node 715 over the thirdneighbor node 725.

In some aspects, the child node 705 may prioritize nodes in the cellpriority list in a measurement first, cost second manner. In this case,nodes with better measurement parameters may generally have a higherpriority than nodes with worse measurement parameters, and nodes withthe same (or similar, within a threshold) measurement parameter may beprioritized by assigning a higher priority to lower cost nodes ascompared to higher cost nodes. Alternatively, the child node 705 mayprioritize nodes in the cell priority list in a cost first, measurementsecond manner. In this case, nodes with lower cost may generally have ahigher priority than nodes with a higher cost, and nodes with the same(or similar, within a threshold) cost parameter may be prioritized byassigning a higher priority to nodes with a better measurement parameteras compared to nodes with a worse measurement parameter, In someaspects, the child node 705 may take both a cost parameter and ameasurement parameter into account when prioritizing nodes for selection(e.g., using a function).

In some aspects, the child node 705 may determine the cell prioritybased at least in part on a service type of a communication to betransmitted or received by the child node 705. For example, for a highpriority communication (e.g., an ultra-reliable low latencycommunication (URLLC)), the child node 705 may determine the cellpriority to prioritize cells capable of providing lower latency and/orhigher reliability service. For example, the child node 705 mayprioritize a first cell with a lower hop count over a second cell with ahigher hop count to reduce latency. The service type may include, forexample, URLLC or enhanced mobile broadband (eMBB).

As shown by reference number 815, for a handover procedure, the childnode 705 may perform and/or report measurements based at least in parton a cost parameter. For example, the child node 705 may transmit, tothe serving node 710, a measurement report based at least in part on acost parameter from a neighbor node and/or a set of cost parameters froma set of neighbor nodes. In some aspects, if a measurement for a node isincluded in the measurement report, then the child node 705 may report acost parameter for that node (e.g., in the measurement report or inanother message separate from the measurement report). However, in somecases, the serving node 710 may receive a cost parameter directly from aneighbor node (as described above in connection with FIG. 7 ), and thecost parameter may be excluded from the measurement report to reducesignaling overhead.

In some aspects, the child node 705 may report measurements for allneighbor cells and/or for all neighbor cells for which a measurementsatisfied a condition. In this case, the child node 705 may not filtermeasurements for neighbor nodes using respective cost parameters toexclude those measurements from the measurement report. In this case,such filtering may be performed by the serving node 710 and/or a controlnode, as described in more detail below in connection with FIG. 9 .

However, in some aspects, the child node 705 may exclude a measurementfor a first node from the measurement report if a cost parameter for thefirst node fails to satisfy a condition, and may include a measurementfor a second node in the measurement report if a cost parameter for thesecond node satisfies a condition. For example, the child node 705 mayexclude a measurement for a node if a cost parameter for the nodeindicates that a cost of selecting the node is greater than or equal toa threshold cost. Similarly, the child node 705 may include ameasurement for a node if a cost parameter for the node indicates that acost of selecting the node is less than or equal to a threshold cost. Byexcluding measurements of high cost nodes from the measurement report,the child node 705 may ensure that a high cost node is not selected fora handover procedure, thereby improving performance of the IAB network.

As indicated above, FIG. 8 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 8 .

FIG. 9 is a diagram illustrating an example 900 of selecting a neighbornode in a wireless multi-hop network using a cost parameter, inaccordance with various aspects of the present disclosure.

As shown by reference number 905, a serving node 710 may receive ameasurement report from a child node 705 in a wireless multi-hopnetwork, as described above in connection with FIG. 8 . As shown byreference number 910, the serving node 710 may receive one or more costparameters corresponding to one or more neighbor nodes in the wirelessmulti-hop network. As described above, a cost parameter of a neighbornode may indicate a cost, due to an operating mode of the neighbor node,of selecting the neighbor node as a target node for a handoverprocedure. As described above in connection with FIG. 8 , in someaspects, the serving node 710 may receive the cost parameter from thechild node 705, such as in the measurement report or a messageassociated with the measurement report. Additionally, or alternatively,as described above in connection with FIG. 7 , the serving node 710 mayreceive the cost parameter for a neighbor node from the neighbor node.

As shown by reference number 915, the serving node 710 may perform ahandover procedure based at least in part on the cost parameter and themeasurement report. In some aspects, the serving node 710 is responsiblefor controlling the handover procedure (e.g., the serving node 710 mayact as a control node). In this case, the serving node 710 may select aneighbor node, from a set of neighbor nodes indicated in the measurementreport, based at least in part on a set of cost parameters correspondingto the set of neighbor nodes. For example, the serving node may select aneighbor node, from a set of neighbor nodes for which correspondingmeasurements satisfy a condition, with the best cost parameter (e.g.,indicating the lowest cost of selection). Additionally, oralternatively, the serving node 710 may calculate a selection value foreach neighbor node indicated in the measurement report (e.g., for whicha corresponding measurement satisfies a condition) based at least inpart on a respective cost parameter and a respective measurement forthat neighbor node. The serving node 710 may then select the neighbornode with the best selection value as the target node for handover. Inexample 900, the serving node 710 determines that the first neighbornode 715 is the target node.

As shown by reference number 920, the serving node 710 may indicate theselected neighbor node (e.g., the target node) to a control node (shownas a first control node 730), which may include the serving node 710,another node in the IAB network (e.g., a parent node of the serving node710 or a node included in a route from the serving node 710 to a CU ofthe serving node 710), a CU that configures the serving node 710, and/orthe like. In example 900, the serving node 710 performs an analysis toselect a target node, and indicates the target node to the control node.However, in some aspects, the serving node 710 may forward costparameters and measurements for the set of neighbor nodes to the controlnode, and the control node may perform the analysis to identify thetarget node.

As shown by reference number 925, the control node may instruct thetarget node (in example 900, the first neighbor node 715) to perform thehandover procedure. Based at least in part on the instruction, thetarget node may prepare for handover of the child node 705 from theserving node 710 to the target node. In some aspects, after the childnode 705 is handed over from the serving node 710 to the target node,the serving node 710 and/or the target node may modify respectiveoperating modes. For example, the target node may transition from ahigher cost operating mode (e.g., deep sleep) to a lower cost operatingmode (e.g., powered on), or may transition from a lower cost operatingmode (e.g., lower traffic volume) to a higher cost operating mode (e.g.,higher traffic volume). Similarly, the serving node 710 may transitionfrom a higher cost operating mode (e.g., higher traffic volume) to alower cost operating mode (e.g., lower traffic volume), or maytransition from a lower cost operating mode (e.g., powered on) to ahigher cost operating mode (e.g., deep sleep).

Although the serving node 710 is described above as performingoperations in association with a handover procedure, in some aspects,one or more of these operations may be performed by a control node. Forexample, the serving node 710 may identify one or more neighbor nodesindicated in the measurement report for which a corresponding one ormore cost parameters satisfies a condition (e.g., a cost below athreshold). The serving node 710 may identify one or more control nodesassociated with the one or more neighbor nodes, and may transmit anindication of the one or more neighbor nodes to the one or more controlnodes. In this case, the one or more control nodes may analyzemeasurements and/or cost parameters for the neighbor nodes, and mayselect a neighbor node as a target node for handover in a similar manneras described above (e.g., which may involve communication betweenmultiple control nodes). In some aspects, the serving node 710 mayfilter out one or more nodes prior to transmitting measurements and/orcost parameters to the control node. In some aspects, the serving node710 may identify a control node associated with the serving node (e.g.,a parent node, a CU, and/or the like), and may indicate the one or moreneighbor nodes to that control node. The control node may receive a costparameter for a node from the serving node 710 or from the node, asdescribed elsewhere herein.

In this way, the child node 705, the serving node 710, and/or a controlnode may account for operating modes of neighbor nodes when performing ahandover procedure and/or a cell selection procedure (e.g., including acell reselection procedure), thereby improving performance of the IABnetwork.

As indicated above, FIG. 9 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 9 .

FIG. 10 is a diagram illustrating an example process 1000 performed, forexample, by a child node, in accordance with various aspects of thepresent disclosure. Example process 1000 is an example where a childnode (e.g., an IAB node 410, a child node 505, a child node 705, a UE120, a base station 110, and/or the like) performs operations associatedwith selecting a neighbor node in a wireless multi-hop network using acost parameter.

As shown in FIG. 10 , in some aspects, process 1000 may includereceiving a cost parameter from a neighbor node in the wirelessmulti-hop network, wherein the cost parameter indicates a cost, due toan operating mode of the neighbor node, of selecting the neighbor nodeas a target node for a handover procedure, a cell selection procedure,or a cell reselection procedure (block 1010). For example, the childnode (e.g., using antenna 234, DEMOD 232, MIMO detector 236, receiveprocessor 238, controller/processor 240, memory 242, antenna 252, DEMOD254, MIMO detector 256, receive processor 258, controller/processor 280,memory 282, and/or the like) may receive a cost parameter from aneighbor node in the wireless multi-hop network, as described above. Insome aspects, the cost parameter indicates a cost, due to an operatingmode of the neighbor node, of selecting the neighbor node as a targetnode for a handover procedure, a cell selection procedure, or a cellreselection procedure.

As further shown in FIG. 10 , in some aspects, process 1000 may includeperforming the handover procedure, the cell selection procedure, or thecell reselection procedure based at least in part on the cost parameter(block 1020). For example, the child node (e.g., using transmitprocessor 220, receive processor 238, controller/processor 240, memory242, receive processor 258, transmit processor 264, controller/processor280, memory 282, and/or the like) may perform the handover procedure,the cell selection procedure, or the cell reselection procedure based atleast in part on the cost parameter, as described above.

Process 1000 may include additional aspects, such as any single aspector any combination of aspects described below and/or in connection withone or more other processes described elsewhere herein.

In a first aspect, performing the handover procedure comprisestransmitting, to a serving node that serves the child node in thewireless multi-hop network, a measurement report based at least in parton the cost parameter.

In a second aspect, alone or in combination with the first aspect, themeasurement report includes the cost parameter for the neighbor node.

In a third aspect, alone or in combination with one or more of the firstand second aspects, the measurement report includes a set of costparameters for a corresponding set of neighbor nodes.

In a fourth aspect, alone or in combination with one or more of thefirst through third aspects, performing the handover procedure furthercomprises: determining that the cost parameter for the neighbor nodesatisfies a condition; and indicating one or more measurements for theneighbor node in the measurement report based at least in part ondetermining that the cost parameter for the neighbor node satisfies thecondition.

In a fifth aspect, alone or in combination with one or more of the firstthrough fourth aspects, the measurement report includes measurements forone or more neighbor nodes for which a corresponding one or more costparameters satisfy a condition.

In a sixth aspect, alone or in combination with one or more of the firstthrough fifth aspects, performing the cell selection procedure or thecell reselection procedure comprises prioritizing the neighbor node forthe cell selection procedure or the cell reselection procedure based atleast in part on the cost parameter.

In a seventh aspect, alone or in combination with one or more of thefirst through sixth aspects, the cost parameter is received via at leastone of: a synchronization signal block, a physical broadcast channel, asystem information block, remaining minimum system information, achannel state information reference signal, or a combination thereof.

In an eighth aspect, alone or in combination with one or more of thefirst through seventh aspects, the cost parameter is based at least inpart on at least one of: the operating mode of the neighbor node, apower saving mode of the neighbor node, a power status of the neighbornode, a hop count associated with the neighbor node, an operating modeor a power status of one or more other nodes included in a route fromthe neighbor node to a central unit of the wireless multi-hop network, atime at which the neighbor node is available to serve the child node, apriority of selecting the neighbor node as the target node as comparedto one or more other neighbor nodes, or a combination thereof.

Although FIG. 10 shows example blocks of process 1000, in some aspects,process 1000 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 10 .Additionally, or alternatively, two or more of the blocks of process1000 may be performed in parallel.

FIG. 11 is a diagram illustrating an example process 1100 performed, forexample, by a serving node, in accordance with various aspects of thepresent disclosure. Example process 1100 is an example where a servingnode (e.g., an IAB node 410, an IAB donor 405, a serving node 510, aserving node 605, a serving node 710, a base station 110, and/or thelike) performs operations associated with selecting a neighbor node in awireless multi-hop network using a cost parameter.

As shown in FIG. 11 , in some aspects, process 1100 may includereceiving a cost parameter associated with a neighbor node in thewireless multi-hop network, wherein the cost parameter indicates a cost,due to an operating mode of the neighbor node, of selecting the neighbornode as a target node for a handover procedure (block 1110). Forexample, the serving node (e.g., using antenna 234, DEMOD 232, MIMOdetector 236, receive processor 238, controller/processor 240, memory242, communication unit 294, controller/processor 290, memory 292,and/or the like) may receive a cost parameter associated with a neighbornode in the wireless multi-hop network, as described above. In someaspects, the cost parameter indicates a cost, due to an operating modeof the neighbor node, of selecting the neighbor node as a target nodefor a handover procedure.

As further shown in FIG. 11 , in some aspects, process 1100 may includeperforming the handover procedure based at least in part on the costparameter (block 1120). For example, the serving node (e.g., usingantenna 234, DEMOD 232, MIMO detector 236, receive processor 238,controller/processor 240, memory 242, transmit processor 220, TX MIMOprocessor 230, MOD 232, communication unit 294, controller/processor290, memory 292, and/or the like) may perform the handover procedurebased at least in part on the cost parameter, as described above.

Process 1100 may include additional aspects, such as any single aspector any combination of aspects described below and/or in connection withone or more other processes described elsewhere herein.

In a first aspect, the cost parameter is received from a child node, ofthe serving node, in a measurement report.

In a second aspect, alone or in combination with the first aspect, thecost parameter is received from the neighbor node.

In a third aspect, alone or in combination with one or more of the firstand second aspects, performing the handover procedure comprisesselecting the neighbor node, from a set of neighbor nodes, as the targetnode for the handover procedure based at least in part on the costparameter.

In a fourth aspect, alone or in combination with one or more of thefirst through third aspects, performing the handover procedure furthercomprises: determining that the cost parameter for the neighbor nodesatisfies a condition; and performing the handover procedure based atleast in part on determining that the cost parameter for the neighbornode satisfies the condition.

In a fifth aspect, alone or in combination with one or more of the firstthrough fourth aspects, the cost parameter is received via at least oneof: a measurement report, a synchronization signal block, a physicalbroadcast channel, a system information block, remaining minimum systeminformation, a channel state information reference signal, or acombination thereof.

In a sixth aspect, alone or in combination with one or more of the firstthrough fifth aspects, the cost parameter is based at least in part onat least one of: the operating mode of the neighbor node, a power savingmode of the neighbor node, a power status of the neighbor node, a hopcount associated with the neighbor node, an operating mode or a powerstatus of one or more other nodes included in a route from the neighbornode to a central unit of the wireless multi-hop network, a time atwhich the neighbor node is available to serve a child node, a priorityof selecting the neighbor node as the target node as compared to one ormore other neighbor nodes, or a combination thereof.

In a seventh aspect, alone or in combination with one or more of thefirst through sixth aspects, performing the handover procedure furthercomprises: identifying one or more neighbor nodes for which acorresponding one or more cost parameters satisfy a condition;identifying at least one control node associated with the one or moreneighbor nodes; and transmitting an indication of the one or moreneighbor nodes to the at least one control node for the handoverprocedure.

In an eighth aspect, alone or in combination with one or more of thefirst through seventh aspects, performing the handover procedure furthercomprises: identifying one or more neighbor nodes for which acorresponding one or more cost parameters satisfy a condition; andtransmitting an indication of the one or more neighbor nodes to acontrol node associated with the serving node.

In a ninth aspect, alone or in combination with one or more of the firstthrough eighth aspects, the control node is the serving node, anothernode in the wireless multi-hop network, or a central unit in thewireless multi-hop network.

In a tenth aspect, alone or in combination with one or more of the firstthrough ninth aspects, process 1100 includes modifying an operating modeof the serving node after the handover procedure is complete.

Although FIG. 11 shows example blocks of process 1100, in some aspects,process 1100 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 11 .Additionally, or alternatively, two or more of the blocks of process1100 may be performed in parallel.

FIG. 12 is a diagram illustrating an example process 1200 performed, forexample, by a neighbor node, in accordance with various aspects of thepresent disclosure. Example process 1200 is an example where a neighbornode (e.g., an IAB node 410, a target node 515, a neighbor node 610-630,a neighbor node 715-725, a base station 110, and/or the like) performsoperations associated with selecting a neighbor node in a wirelessmulti-hop network using a cost parameter.

As shown in FIG. 12 , in some aspects, process 1200 may includedetermining a cost parameter that indicates a cost, due to an operatingmode of the neighbor node, of selecting the neighbor node as a targetnode for a handover procedure, a cell selection procedure, or a cellreselection procedure (block 1210). For example, the neighbor node(e.g., using antenna 234, DEMOD 232, MIMO detector 236, receiveprocessor 238, controller/processor 240, memory 242, transmit processor220, TX MIMO processor 230, MOD 232, and/or the like) may determine acost parameter that indicates a cost, due to an operating mode of theneighbor node, of selecting the neighbor node as a target node for ahandover procedure, a cell selection procedure, or a cell reselectionprocedure, as described above.

As further shown in FIG. 12 , in some aspects, process 1200 may includetransmitting the cost parameter (block 1220). For example, the neighbornode (e.g., using controller/processor 240, memory 242, transmitprocessor 220, TX MIMO processor 230, MOD 232, antenna 234, and/or thelike) may transmit the cost parameter, as described above.

Process 1200 may include additional aspects, such as any single aspector any combination of aspects described below and/or in connection withone or more other processes described elsewhere herein.

In a first aspect, the cost parameter is transmitted via at least oneof: a synchronization signal block, a physical broadcast channel, asystem information block, remaining minimum system information, achannel state information reference signal, or a combination thereof.

In a second aspect, alone or in combination with the first aspect, thecost parameter is based at least in part on at least one of: theoperating mode of the neighbor node, a power saving mode of the neighbornode, a power status of the neighbor node, a hop count associated withthe neighbor node, an operating mode or a power status of one or moreother nodes included in a route from the neighbor node to a central unitof the wireless multi-hop network, a time at which the neighbor node isavailable to serve a child node, a priority of selecting the neighbornode as the target node as compared to one or more other neighbor nodes,or a combination thereof.

In a third aspect, alone or in combination with one or more of the firstand second aspects, the cost parameter is transmitted based at least inpart on a determination that the operating mode of the neighbor nodesatisfies a condition.

In a fourth aspect, alone or in combination with one or more of thefirst through third aspects, the cost parameter is configured by theneighbor node and transmitted to a central unit in the wirelessmulti-hop network.

In a fifth aspect, alone or in combination with one or more of the firstthrough fourth aspects, the cost parameter is configured by a centralunit in the wireless multi-hop network.

In a sixth aspect, alone or in combination with one or more of the firstthrough fifth aspects, the cost parameter is determined based at leastin part on detecting at least one of: a change in the operating mode ofthe neighbor node, a change in an operating mode of another nodeassociated with the neighbor node, a change in a power status of theneighbor node or of another node associated with the neighbor node, achange in network topology, or a combination thereof.

In a seventh aspect, alone or in combination with one or more of thefirst through sixth aspects, the cost parameter is updated periodically,transmitted periodically, or a combination thereof.

In an eighth aspect, alone or in combination with one or more of thefirst through seventh aspects, process 1200 includes modifying anoperating mode of the neighbor node after completion of the handoverprocedure, the cell selection procedure, or the cell reselectionprocedure.

Although FIG. 12 shows example blocks of process 1200, in some aspects,process 1200 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 12 .Additionally, or alternatively, two or more of the blocks of process1200 may be performed in parallel.

FIG. 13 is a diagram illustrating an example process 1300 performed, forexample, by a control node, in accordance with various aspects of thepresent disclosure. Example process 1300 is an example where a controlnode (e.g., an IAB donor 405, an IAB node 410, a serving node 510, acontrol node 520, a serving node 605, a serving node 710, a control node730-735, a base station 110, and/or the like) performs operationsassociated with selecting a neighbor node in a wireless multi-hopnetwork using a cost parameter.

As shown in FIG. 13 , in some aspects, process 1300 may includereceiving a set of cost parameters corresponding to a set of neighbornodes in the wireless multi-hop network, wherein each cost parameterindicates a cost, due to an operating mode of a respective neighbornode, of selecting the respective neighbor node as a target node for ahandover procedure (block 1310). For example, the control node (e.g.,using antenna 234, DEMOD 232, MIMO detector 236, receive processor 238,controller/processor 240, memory 242, communication unit 294,controller/processor 290, memory 292, and/or the like) may receive a setof cost parameters corresponding to a set of neighbor nodes in thewireless multi-hop network, as described above. In some aspects, eachcost parameter indicates a cost, due to an operating mode of arespective neighbor node, of selecting the respective neighbor node as atarget node for a handover procedure.

As further shown in FIG. 13 , in some aspects, process 1300 may includeselecting a neighbor node, of the set of neighbor nodes, as the targetnode for the handover procedure based at least in part on the set ofcost parameters (block 1320). For example, the control node (e.g., usingcontroller/processor 240, memory 242, controller/processor 290, memory292, and/or the like) may select a neighbor node, of the set of neighbornodes, as the target node for the handover procedure based at least inpart on the set of cost parameters, as described above.

As further shown in FIG. 13 , in some aspects, process 1300 may includeinstructing the selected neighbor node to perform the handover procedure(block 1330). For example, the control node (e.g., usingcontroller/processor 240, memory 242, transmit processor 220, TX MIMOprocessor 230, MOD 232, antenna 234, communication unit 294,controller/processor 290, memory 292, and/or the like) may instruct theselected neighbor node to perform the handover procedure, as describedabove.

Process 1300 may include additional aspects, such as any single aspector any combination of aspects described below and/or in connection withone or more other processes described elsewhere herein.

In a first aspect, at least one cost parameter, of the set of costparameters, is received via at least one of: a measurement report, asynchronization signal block, a physical broadcast channel, a systeminformation block, remaining minimum system information, a channel stateinformation reference signal, or a combination thereof.

In a second aspect, alone or in combination with the first aspect, acost parameter, of the set of cost parameters, is based at least in parton at least one of: the operating mode of the neighbor node, a powersaving mode of the neighbor node, a power status of the neighbor node, ahop count associated with the neighbor node, an operating mode or apower status of one or more other nodes included in a route from theneighbor node to a central unit of the wireless multi-hop network, atime at which the neighbor node is available to serve a child node, apriority of selecting the neighbor node as the target node as comparedto one or more other neighbor nodes, or a combination thereof.

Although FIG. 13 shows example blocks of process 1300, in some aspects,process 1300 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 13 .Additionally, or alternatively, two or more of the blocks of process1300 may be performed in parallel.

FIG. 14 is a block diagram of an example apparatus 1400 for wirelesscommunication, in accordance with various aspects of the presentdisclosure. The apparatus 1400 may be a child node, or a child node mayinclude the apparatus 1400. In some aspects, the apparatus 1400 includesa reception component 1402 and a transmission component 1404, which maybe in communication with one another (for example, via one or more busesand/or one or more other components). As shown, the apparatus 1400 maycommunicate with another apparatus 1406 (such as a UE, a base station,or another wireless communication device) using the reception component1402 and the transmission component 1404. As further shown, theapparatus 1400 may include a performing component 1408, among otherexamples.

In some aspects, the apparatus 1400 may be configured to perform one ormore operations described herein in connection with FIGS. 7-9 .Additionally or alternatively, the apparatus 1400 may be configured toperform one or more processes described herein, such as process 1000 ofFIG. 10 . In some aspects, the apparatus 1400 and/or one or morecomponents shown in FIG. 14 may include one or more components of the UEdescribed above in connection with FIG. 2 . Additionally, oralternatively, one or more components shown in FIG. 14 may beimplemented within one or more components described above in connectionwith FIG. 2 . Additionally or alternatively, one or more components ofthe set of components may be implemented at least in part as softwarestored in a memory. For example, a component (or a portion of acomponent) may be implemented as instructions or code stored in anon-transitory computer-readable medium and executable by a controlleror a processor to perform the functions or operations of the component.

The reception component 1402 may receive communications, such asreference signals, control information, data communications, or acombination thereof, from the apparatus 1406. The reception component1402 may provide received communications to one or more other componentsof the apparatus 1400. In some aspects, the reception component 1402 mayperform signal processing on the received communications (such asfiltering, amplification, demodulation, analog-to-digital conversion,demultiplexing, deinterleaving, de-mapping, equalization, interferencecancellation, or decoding, among other examples), and may provide theprocessed signals to the one or more other components of the apparatus1406. In some aspects, the reception component 1402 may include one ormore antennas, a demodulator, a MIMO detector, a receive processor, acontroller/processor, a memory, or a combination thereof, of the UEdescribed above in connection with FIG. 2 .

The transmission component 1404 may transmit communications, such asreference signals, control information, data communications, or acombination thereof, to the apparatus 1406. In some aspects, one or moreother components of the apparatus 1406 may generate communications andmay provide the generated communications to the transmission component1404 for transmission to the apparatus 1406. In some aspects, thetransmission component 1404 may perform signal processing on thegenerated communications (such as filtering, amplification, modulation,digital-to-analog conversion, multiplexing, interleaving, mapping, orencoding, among other examples), and may transmit the processed signalsto the apparatus 1406. In some aspects, the transmission component 1404may include one or more antennas, a modulator, a transmit MIMOprocessor, a transmit processor, a controller/processor, a memory, or acombination thereof, of the UE described above in connection with FIG. 2. In some aspects, the transmission component 1404 may be collocatedwith the reception component 1402 in a transceiver.

The reception component 1402 may receive a cost parameter from aneighbor node in the wireless multi-hop network, wherein the costparameter indicates a cost, due to an operating mode of the neighbornode, of selecting the neighbor node as a target node for a handoverprocedure, a cell selection procedure, or a cell reselection procedure.The performing component 1408 may perform the handover procedure, thecell selection procedure, or the cell reselection procedure based atleast in part on the cost parameter.

The number and arrangement of components shown in FIG. 14 are providedas an example. In practice, there may be additional components, fewercomponents, different components, or differently arranged componentsthan those shown in FIG. 14 . Furthermore, two or more components shownin FIG. 14 may be implemented within a single component, or a singlecomponent shown in FIG. 14 may be implemented as multiple, distributedcomponents. Additionally or alternatively, a set of (one or more)components shown in FIG. 14 may perform one or more functions describedas being performed by another set of components shown in FIG. 14 .

FIG. 15 is a block diagram of an example apparatus 1500 for wirelesscommunication, in accordance with various aspects of the presentdisclosure. The apparatus 1500 may be a serving node, or a serving nodemay include the apparatus 1500. In some aspects, the apparatus 1500includes a reception component 1502 and a transmission component 1504,which may be in communication with one another (for example, via one ormore buses and/or one or more other components). As shown, the apparatus1500 may communicate with another apparatus 1506 (such as a UE, a basestation, or another wireless communication device) using the receptioncomponent 1502 and the transmission component 1504. As further shown,the apparatus 1500 may include a performing component 1508, among otherexamples.

In some aspects, the apparatus 1500 may be configured to perform one ormore operations described herein in connection with FIGS. 7-9 .Additionally or alternatively, the apparatus 1500 may be configured toperform one or more processes described herein, such as process 1100 ofFIG. 11 . In some aspects, the apparatus 1500 and/or one or morecomponents shown in FIG. 15 may include one or more components of thebase station described above in connection with FIG. 2 . Additionally,or alternatively, one or more components shown in FIG. 15 may beimplemented within one or more components described above in connectionwith FIG. 2 . Additionally or alternatively, one or more components ofthe set of components may be implemented at least in part as softwarestored in a memory. For example, a component (or a portion of acomponent) may be implemented as instructions or code stored in anon-transitory computer-readable medium and executable by a controlleror a processor to perform the functions or operations of the component.

The reception component 1502 may receive communications, such asreference signals, control information, data communications, or acombination thereof, from the apparatus 1506. The reception component1502 may provide received communications to one or more other componentsof the apparatus 1500. In some aspects, the reception component 1502 mayperform signal processing on the received communications (such asfiltering, amplification, demodulation, analog-to-digital conversion,demultiplexing, deinterleaving, de-mapping, equalization, interferencecancellation, or decoding, among other examples), and may provide theprocessed signals to the one or more other components of the apparatus1506. In some aspects, the reception component 1502 may include one ormore antennas, a demodulator, a MIMO detector, a receive processor, acontroller/processor, a memory, or a combination thereof, of the basestation described above in connection with FIG. 2 .

The transmission component 1504 may transmit communications, such asreference signals, control information, data communications, or acombination thereof, to the apparatus 1506. In some aspects, one or moreother components of the apparatus 1506 may generate communications andmay provide the generated communications to the transmission component1504 for transmission to the apparatus 1506. In some aspects, thetransmission component 1504 may perform signal processing on thegenerated communications (such as filtering, amplification, modulation,digital-to-analog conversion, multiplexing, interleaving, mapping, orencoding, among other examples), and may transmit the processed signalsto the apparatus 1506. In some aspects, the transmission component 1504may include one or more antennas, a modulator, a transmit MIMOprocessor, a transmit processor, a controller/processor, a memory, or acombination thereof, of the base station described above in connectionwith FIG. 2 . In some aspects, the transmission component 1504 may becollocated with the reception component 1502 in a transceiver.

The reception component 1502 may receive a cost parameter associatedwith a neighbor node in the wireless multi-hop network, wherein the costparameter indicates a cost, due to an operating mode of the neighbornode, of selecting the neighbor node as a target node for a handoverprocedure. The performing component 1508 may perform the handoverprocedure based at least in part on the cost parameter.

The number and arrangement of components shown in FIG. 15 are providedas an example. In practice, there may be additional components, fewercomponents, different components, or differently arranged componentsthan those shown in FIG. 15 . Furthermore, two or more components shownin FIG. 15 may be implemented within a single component, or a singlecomponent shown in FIG. 15 may be implemented as multiple, distributedcomponents. Additionally or alternatively, a set of (one or more)components shown in FIG. 15 may perform one or more functions describedas being performed by another set of components shown in FIG. 15 .

FIG. 16 is a block diagram of an example apparatus 1600 for wirelesscommunication, in accordance with various aspects of the presentdisclosure. The apparatus 1600 may be a neighbor node, or a neighbornode may include the apparatus 1600. In some aspects, the apparatus 1600includes a reception component 1602 and a transmission component 1604,which may be in communication with one another (for example, via one ormore buses and/or one or more other components). As shown, the apparatus1600 may communicate with another apparatus 1606 (such as a UE, a basestation, or another wireless communication device) using the receptioncomponent 1602 and the transmission component 1604. As further shown,the apparatus 1600 may include a determination component 1608, amongother examples.

In some aspects, the apparatus 1600 may be configured to perform one ormore operations described herein in connection with FIGS. 7-9 .Additionally or alternatively, the apparatus 1600 may be configured toperform one or more processes described herein, such as process 1200 ofFIG. 12 . In some aspects, the apparatus 1600 and/or one or morecomponents shown in FIG. 16 may include one or more components of thebase station described above in connection with FIG. 2 . Additionally,or alternatively, one or more components shown in FIG. 16 may beimplemented within one or more components described above in connectionwith FIG. 2 . Additionally or alternatively, one or more components ofthe set of components may be implemented at least in part as softwarestored in a memory. For example, a component (or a portion of acomponent) may be implemented as instructions or code stored in anon-transitory computer-readable medium and executable by a controlleror a processor to perform the functions or operations of the component.

The reception component 1602 may receive communications, such asreference signals, control information, data communications, or acombination thereof, from the apparatus 1606. The reception component1602 may provide received communications to one or more other componentsof the apparatus 1600. In some aspects, the reception component 1602 mayperform signal processing on the received communications (such asfiltering, amplification, demodulation, analog-to-digital conversion,demultiplexing, deinterleaving, de-mapping, equalization, interferencecancellation, or decoding, among other examples), and may provide theprocessed signals to the one or more other components of the apparatus1606. In some aspects, the reception component 1602 may include one ormore antennas, a demodulator, a MIMO detector, a receive processor, acontroller/processor, a memory, or a combination thereof, of the basestation described above in connection with FIG. 2 .

The transmission component 1604 may transmit communications, such asreference signals, control information, data communications, or acombination thereof, to the apparatus 1606. In some aspects, one or moreother components of the apparatus 1606 may generate communications andmay provide the generated communications to the transmission component1604 for transmission to the apparatus 1606. In some aspects, thetransmission component 1604 may perform signal processing on thegenerated communications (such as filtering, amplification, modulation,digital-to-analog conversion, multiplexing, interleaving, mapping, orencoding, among other examples), and may transmit the processed signalsto the apparatus 1606. In some aspects, the transmission component 1604may include one or more antennas, a modulator, a transmit MIMOprocessor, a transmit processor, a controller/processor, a memory, or acombination thereof, of the base station described above in connectionwith FIG. 2 . In some aspects, the transmission component 1604 may becollocated with the reception component 1602 in a transceiver.

The determination component 1608 may determine a cost parameter thatindicates a cost, due to an operating mode of the neighbor node, ofselecting the neighbor node as a target node for a handover procedure, acell selection procedure, or a cell reselection procedure. Thetransmission component 1604 may transmit the cost parameter.

The number and arrangement of components shown in FIG. 16 are providedas an example. In practice, there may be additional components, fewercomponents, different components, or differently arranged componentsthan those shown in FIG. 16 . Furthermore, two or more components shownin FIG. 16 may be implemented within a single component, or a singlecomponent shown in FIG. 16 may be implemented as multiple, distributedcomponents. Additionally or alternatively, a set of (one or more)components shown in FIG. 16 may perform one or more functions describedas being performed by another set of components shown in FIG. 16 .

FIG. 17 is a block diagram of an example apparatus 1700 for wirelesscommunication, in accordance with various aspects of the presentdisclosure. The apparatus 1700 may be a control node, or a control nodemay include the apparatus 1700. In some aspects, the apparatus 1700includes a reception component 1702 and a transmission component 1704,which may be in communication with one another (for example, via one ormore buses and/or one or more other components). As shown, the apparatus1700 may communicate with another apparatus 1706 (such as a UE, a basestation, or another wireless communication device) using the receptioncomponent 1702 and the transmission component 1704. As further shown,the apparatus 1700 may include one or more of a selection component 1708or an instruction component 1710, among other examples.

In some aspects, the apparatus 1700 may be configured to perform one ormore operations described herein in connection with FIGS. 7-9 .Additionally or alternatively, the apparatus 1700 may be configured toperform one or more processes described herein, such as process 1300 ofFIG. 13 . In some aspects, the apparatus 1700 and/or one or morecomponents shown in FIG. 17 may include one or more components of thebase station described above in connection with FIG. 2 . Additionally,or alternatively, one or more components shown in FIG. 17 may beimplemented within one or more components described above in connectionwith FIG. 2 . Additionally or alternatively, one or more components ofthe set of components may be implemented at least in part as softwarestored in a memory. For example, a component (or a portion of acomponent) may be implemented as instructions or code stored in anon-transitory computer-readable medium and executable by a controlleror a processor to perform the functions or operations of the component.

The reception component 1702 may receive communications, such asreference signals, control information, data communications, or acombination thereof, from the apparatus 1706. The reception component1702 may provide received communications to one or more other componentsof the apparatus 1700. In some aspects, the reception component 1702 mayperform signal processing on the received communications (such asfiltering, amplification, demodulation, analog-to-digital conversion,demultiplexing, deinterleaving, de-mapping, equalization, interferencecancellation, or decoding, among other examples), and may provide theprocessed signals to the one or more other components of the apparatus1706. In some aspects, the reception component 1702 may include one ormore antennas, a demodulator, a MIMO detector, a receive processor, acontroller/processor, a memory, or a combination thereof, of the basestation described above in connection with FIG. 2 .

The transmission component 1704 may transmit communications, such asreference signals, control information, data communications, or acombination thereof, to the apparatus 1706. In some aspects, one or moreother components of the apparatus 1706 may generate communications andmay provide the generated communications to the transmission component1704 for transmission to the apparatus 1706. In some aspects, thetransmission component 1704 may perform signal processing on thegenerated communications (such as filtering, amplification, modulation,digital-to-analog conversion, multiplexing, interleaving, mapping, orencoding, among other examples), and may transmit the processed signalsto the apparatus 1706. In some aspects, the transmission component 1704may include one or more antennas, a modulator, a transmit MIMOprocessor, a transmit processor, a controller/processor, a memory, or acombination thereof, of the base station described above in connectionwith FIG. 2 . In some aspects, the transmission component 1704 may becollocated with the reception component 1702 in a transceiver.

The reception component 1702 may receive a set of cost parameterscorresponding to a set of neighbor nodes in the wireless multi-hopnetwork, wherein each cost parameter indicates a cost, due to anoperating mode of a respective neighbor node, of selecting therespective neighbor node as a target node for a handover procedure. Theselection component 1708 may select a neighbor node, of the set ofneighbor nodes, as the target node for the handover procedure based atleast in part on the set of cost parameters. The instruction component1710 may instruct the selected neighbor node to perform the handoverprocedure.

The number and arrangement of components shown in FIG. 17 are providedas an example. In practice, there may be additional components, fewercomponents, different components, or differently arranged componentsthan those shown in FIG. 17 . Furthermore, two or more components shownin FIG. 17 may be implemented within a single component, or a singlecomponent shown in FIG. 17 may be implemented as multiple, distributedcomponents. Additionally or alternatively, a set of (one or more)components shown in FIG. 17 may perform one or more functions describedas being performed by another set of components shown in FIG. 17 .

The foregoing disclosure provides illustration and description, but isnot intended to be exhaustive or to limit the aspects to the preciseform disclosed. Modifications and variations may be made in light of theabove disclosure or may be acquired from practice of the aspects.

As used herein, the term “component” is intended to be broadly construedas hardware, firmware, and/or a combination of hardware and software. Asused herein, a processor is implemented in hardware, firmware, and/or acombination of hardware and software.

As used herein, satisfying a threshold may, depending on the context,refer to a value being greater than the threshold, greater than or equalto the threshold, less than the threshold, less than or equal to thethreshold, equal to the threshold, not equal to the threshold, and/orthe like.

It will be apparent that systems and/or methods described herein may beimplemented in different forms of hardware, firmware, and/or acombination of hardware and software. The actual specialized controlhardware or software code used to implement these systems and/or methodsis not limiting of the aspects. Thus, the operation and behavior of thesystems and/or methods were described herein without reference tospecific software code—it being understood that software and hardwarecan be designed to implement the systems and/or methods based, at leastin part, on the description herein.

Even though particular combinations of features are recited in theclaims and/or disclosed in the specification, these combinations are notintended to limit the disclosure of various aspects. In fact, many ofthese features may be combined in ways not specifically recited in theclaims and/or disclosed in the specification. Although each dependentclaim listed below may directly depend on only one claim, the disclosureof various aspects includes each dependent claim in combination withevery other claim in the claim set. A phrase referring to “at least oneof” a list of items refers to any combination of those items, includingsingle members. As an example, “at least one of: a, b, or c” is intendedto cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combinationwith multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c,a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering ofa, b, and c).

No element, act, or instruction used herein should be construed ascritical or essential unless explicitly described as such. Also, as usedherein, the articles “a” and “an” are intended to include one or moreitems, and may be used interchangeably with “one or more.” Furthermore,as used herein, the terms “set” and “group” are intended to include oneor more items (e.g., related items, unrelated items, a combination ofrelated and unrelated items, and/or the like), and may be usedinterchangeably with “one or more.” Where only one item is intended, thephrase “only one” or similar language is used. Also, as used herein, theterms “has,” “have,” “having,” and/or the like are intended to beopen-ended terms. Further, the phrase “based on” is intended to mean“based, at least in part, on” unless explicitly stated otherwise.

What is claimed is:
 1. A serving node in a wireless network, comprising:one or more memories; and one or more processors, coupled to the one ormore memories, configured to: receive a cost parameter associated with aneighbor node in the wireless network, wherein the cost parameterindicates a cost, due to an operating mode of the neighbor node, ofselecting the neighbor node as a target node for a handover procedure;and perform the handover procedure based at least in part on the costparameter.
 2. The serving node of claim 1, wherein the cost parameter isreceived from at least one of: a child node, of the serving node, in ameasurement report, or the neighbor node.
 3. The serving node of claim1, wherein the one or more processors, to perform the handoverprocedure, are configured to select the neighbor node, from a set ofneighbor nodes, as the target node for the handover procedure based atleast in part on the cost parameter.
 4. The serving node of claim 1,wherein the one or more processors, to perform the handover procedure,are configured to: determine that the cost parameter for the neighbornode satisfies a condition; and perform the handover procedure based atleast in part on determining that the cost parameter for the neighbornode satisfies the condition.
 5. The serving node of claim 1, whereinthe cost parameter is received via at least one of: a measurementreport, a synchronization signal block, a physical broadcast channel, asystem information block, remaining minimum system information, or achannel state information reference signal.
 6. The serving node of claim1, wherein the cost parameter is based at least in part on at least oneof: the operating mode of the neighbor node, a power saving mode of theneighbor node, a power status of the neighbor node, a hop countassociated with the neighbor node, an operating mode or a power statusof one or more other nodes included in a route from the neighbor node toa central unit of the wireless network, a time at which the neighbornode is available to serve a child node, or a priority of selecting theneighbor node as the target node as compared to one or more otherneighbor nodes.
 7. The serving node of claim 1, wherein the one or moreprocessors, to perform the handover procedure, are configured to:identify one or more neighbor nodes for which a corresponding one ormore cost parameters satisfy a condition; identify at least one controlnode associated with the one or more neighbor nodes; and transmit anindication of the one or more neighbor nodes to the at least one controlnode for the handover procedure.
 8. The serving node of claim 1, whereinthe one or more processors, to perform the handover procedure, areconfigured to: identify one or more neighbor nodes for which acorresponding one or more cost parameters satisfy a condition; andtransmit an indication of the one or more neighbor nodes to a controlnode associated with the serving node.
 9. The serving node of claim 8,wherein the control node is the serving node, another node in thewireless network, or a central unit in the wireless network.
 10. Theserving node of claim 1, wherein the one or more processors are furtherconfigured to modify an operating mode of the serving node after thehandover procedure is complete.
 11. A method of wireless communicationperformed by a serving node in a wireless network, comprising: receivinga cost parameter associated with a neighbor node in the wirelessnetwork, wherein the cost parameter indicates a cost, due to anoperating mode of the neighbor node, of selecting the neighbor node as atarget node for a handover procedure; and performing the handoverprocedure based at least in part on the cost parameter.
 12. The methodof claim 11, wherein the cost parameter is received from at least oneof: a child node, of the serving node, in a measurement report, or theneighbor node.
 13. The method of claim 11, wherein performing thehandover procedure comprises selecting the neighbor node, from a set ofneighbor nodes, as the target node for the handover procedure based atleast in part on the cost parameter.
 14. The method of claim 11, whereinperforming the handover procedure further comprises: determining thatthe cost parameter for the neighbor node satisfies a condition; andperforming the handover procedure based at least in part on determiningthat the cost parameter for the neighbor node satisfies the condition.15. The method of claim 11, wherein the cost parameter is received viaat least one of: a measurement report, a synchronization signal block, aphysical broadcast channel, a system information block, remainingminimum system information, or a channel state information referencesignal.
 16. The method of claim 11, wherein the cost parameter is basedat least in part on at least one of: the operating mode of the neighbornode, a power saving mode of the neighbor node, a power status of theneighbor node, a hop count associated with the neighbor node, anoperating mode or a power status of one or more other nodes included ina route from the neighbor node to a central unit of the wirelessnetwork, a time at which the neighbor node is available to serve a childnode, or a priority of selecting the neighbor node as the target node ascompared to one or more other neighbor nodes.
 17. The method of claim11, wherein performing the handover procedure further comprises:identifying one or more neighbor nodes for which a corresponding one ormore cost parameters satisfy a condition; identifying at least onecontrol node associated with the one or more neighbor nodes; andtransmitting an indication of the one or more neighbor nodes to the atleast one control node for the handover procedure.
 18. The method ofclaim 11, wherein performing the handover procedure further comprises:identifying one or more neighbor nodes for which a corresponding one ormore cost parameters satisfy a condition; and transmitting an indicationof the one or more neighbor nodes to a control node associated with theserving node.
 19. The method of claim 18, wherein the control node isthe serving node, another node in the wireless network, or a centralunit in the wireless network.
 20. The method of claim 11, furthercomprising modifying an operating mode of the serving node after thehandover procedure is complete.
 21. A non-transitory computer-readablemedium storing a set of instructions for wireless communication, the setof instructions comprising: one or more instructions that, when executedby one or more processors of a serving node in a wireless network, causethe serving node to: receive a cost parameter associated with a neighbornode in the wireless network, wherein the cost parameter indicates acost, due to an operating mode of the neighbor node, of selecting theneighbor node as a target node for a handover procedure; and perform thehandover procedure based at least in part on the cost parameter.
 22. Thenon-transitory computer-readable medium of claim 21, wherein the costparameter is received from at least one of: a child node, of the servingnode, in a measurement report, or the neighbor node.
 23. Thenon-transitory computer-readable medium of claim 21, wherein the one ormore instructions, that cause the serving node to perform the handoverprocedure, cause the serving node to select the neighbor node, from aset of neighbor nodes, as the target node for the handover procedurebased at least in part on the cost parameter.
 24. The non-transitorycomputer-readable medium of claim 21, wherein the one or moreinstructions, that cause the serving node to perform the handoverprocedure, cause the serving node to: determine that the cost parameterfor the neighbor node satisfies a condition; and perform the handoverprocedure based at least in part on determining that the cost parameterfor the neighbor node satisfies the condition.
 25. The non-transitorycomputer-readable medium of claim 21, wherein the cost parameter isreceived via at least one of: a measurement report, a synchronizationsignal block, a physical broadcast channel, a system information block,remaining minimum system information, or a channel state informationreference signal.
 26. The non-transitory computer-readable medium ofclaim 21, wherein the cost parameter is based at least in part on atleast one of: the operating mode of the neighbor node, a power savingmode of the neighbor node, a power status of the neighbor node, a hopcount associated with the neighbor node, an operating mode or a powerstatus of one or more other nodes included in a route from the neighbornode to a central unit of the wireless network, a time at which theneighbor node is available to serve a child node, or a priority ofselecting the neighbor node as the target node as compared to one ormore other neighbor nodes.
 27. The non-transitory computer-readablemedium of claim 21, wherein the one or more instructions, that cause theserving node to perform the handover procedure, cause the serving nodeto: identify one or more neighbor nodes for which a corresponding one ormore cost parameters satisfy a condition; identify at least one controlnode associated with the one or more neighbor nodes; and transmit anindication of the one or more neighbor nodes to the at least one controlnode for the handover procedure.
 28. The non-transitorycomputer-readable medium of claim 21, wherein the one or moreinstructions, that cause the serving node to perform the handoverprocedure, cause the serving node to: identify one or more neighbornodes for which a corresponding one or more cost parameters satisfy acondition; and transmit an indication of the one or more neighbor nodesto a control node associated with the serving node.
 29. Thenon-transitory computer-readable medium of claim 28, wherein the controlnode is the serving node, another node in the wireless network, or acentral unit in the wireless network.
 30. An apparatus in a wirelessnetwork, comprising: means for receiving a cost parameter associatedwith a neighbor node in the wireless network, wherein the cost parameterindicates a cost, due to an operating mode of the neighbor node, ofselecting the neighbor node as a target node for a handover procedure;and means for performing the handover procedure based at least in parton the cost parameter.